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Telephone +91-361-258 3431 (O)
+91-361-258 5431 (R)
Fax +91-361-258 2699
Email dnbasu@iitg.ac.in
dipankar.n.basu@gmail.com
 
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Completed doctoral students

Dr Vijay K MishraDr. Vijay K Mishra Dr Daya ShankarDr. Daya Shankar Dr Milan KS SarkarDr. Milan KS Sarkar Dr Kiran SaikiaDr. Kiran Saikia
Dr Vijay K Mishra

Dr. Vijay Kumar Mishra

Thesis title :: Estimation of Parameters in Conduction-Radiation Heat Transfer in Porous Media
Co-supervisor :: Prof. Subhash C Mishra, IIT Guwahati
Defended on :: February 15, 2017
Now affiliated to :: Kalinga Institute of Industrial Technology
Bhubaneswar, Odisha 751024, India
Contact details :: mishra.vdm@gmail.com
vijay.mishrafme@kiit.ac.in

Publications in International Journals (from the thesis)

  1. VK Mishra, SC Mishra and DN Basu (2015), Combined Mode Conduction and Radiation Heat Transfer in a Porous Medium and Estimation of Optical Properties of the Porous Matrix, Numerical Heat Transfer Part A, Vol. 67, No. 10, pp. 1119-1135, DOI: 10.1080/10407782.2014.955358
  2. VK Mishra, SC Mishra and DN Basu (2016), Simultaneous Estimation of Properties in a Combined Mode Conduction and Radiation Heat Transfer in a Porous Medium, Heat Transfer - Asian Research, Vol. 45, No. 8, pp. 699-713, DOI: 10.1002/htj.21184
  3. VK Mishra, SC Mishra and DN Basu (2017), Simultaneous Estimation of Parameters in Analyzing Porous Medium Combustion - Assessment of Seven Optimization Tools, Numerical Heat Transfer Part A, Vol. 71, No. 6, pp. 666-676, DOI: 10.1080/10407782.2016.1139908
  4. VK Mishra, SC Mishra and DN Basu (2017), Simultaneous Estimation of Four Parameters in a Combined Mode Heat Transfer in 2-D Porous Matrix with Heat Generation, Numerical Heat Transfer Part A, Vol. 71, No. 6, pp. 677-692, DOI: 10.1080/10407782.2016.1139910

Publications in International Conference Proceedings (from the thesis)

  1. VK Mishra, SC Mishra and DN Basu (2013), Heat Transfer Analysis Combined with Estimation of Optical Properties of a Porous Radiant Burner, Proc. 22nd National and 11th International ISHMT-ASME Heat and Mass Transfer Conference, Kharagpur, India, December 28-31, Paper ID HMTC1300078
  2. VK Mishra, SC Mishra and DN Basu (2014), Combined Mode Conduction and Radiation Heat Transfer in a 2-D Porous Medium and Simultaneous Estimation of its Optical Properties, Proc. 11th International Conference on Flow Dynamics, Sendai, Japan, October 08-10, pp. 356-357
  3. VK Mishra, SC Mishra and DN Basu (2015), Estimation of a parameter in a combined mode heat transfer in a two layered 2D-axisymmetric porous matrix, Proc. 12th International Conference on Flow Dynamics, Sendai, Japan, October 27 – 29
  4. VK Mishra, SC Mishra and DN Basu (2015), Combined Mode Conduction-Radiation Heat Transfer in 2-D Cylindrical Porous Medium and Simultaneous Estimation of its Properties, Proc. 23rd National and 1st International ISHMT-ASTFE Heat and Mass Transfer Conference, Trivandrum, India, December 17-20, Paper ID IHMTC2015-998
  5. VK Mishra, SC Mishra and DN Basu (2015), Simultaneous estimation of properties of a 1-D porous radiant burner, Proc. 23rd National and 1st International ISHMT-ASTFE Heat and Mass Transfer Conference, Trivandrum, India, December 17-20, Paper ID IHMTC2015-1000
  6. VK Mishra and DN Basu (2017), Heat Transfer Characteristics of 2D-axisymmetric Porous Radiant Burner, Proc. 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2017), Hyderabad, India, December 27-30 (Book Chapter in: ISHMT digital library ISSN: 2688-7231 )

Abstract of Thesis

Development of thermal systems like a porous radiant burner, heat exchangers, insulations, etc., quantitative knowledge of heat and/or mass transfer, temperature field are essential. With geometric details, thermo-physical and optical properties, and initial and boundary conditions known, the desired results, viz., temperature and heat flux distributions are known by numerically solving a set of governing equations. However, when a thermal system is designed, a priori knowledge of some or all of the geometric parameters, and thermos-physical and optical properties of the material, and even initial and/or boundary conditions may not be known. Experimental route to optimize these parameters with trial and error approach for the desired outcome is not scientific. Recourse of an inverse analysis is the most preferred option by the scientific community. With thermo-physical properties and initial and boundary conditions known, calculations of the desired velocity field, temperature field or heat and mass flow rates, come under solving a direct problem. However, when either of the desired quantities (temperature, velocity fields, heat and mass transfer rates), and one or more of the properties or initial or boundary conditions are unknown, problem becomes an inverse one. In the direct problem, causes are known, and getting the outcomes are straightforward. On the contrary, in inverse problems, the outcome is known, but not the cause(s). Estimation of cause(s) is relatively, a difficult task. Mathematically, inverse problems are ill-posed. With even a slight variations in governing parameters, solution goes astray. Over the last five decades, many researchers have studied heat and mass transfer in porous media. They have considered different geometric and thermal configurations. However, study on estimation of parameters in a combined mode conduction and radiation heat transfer with or without combustion is scarce. With its application in porous radiant burners in mind, the present work, is aimed at heat transfer analysis as well as estimation of thermo-physical and optical properties in a combined mode conduction and radiation heat transfer in porous media. With aforementioned objective in mind, in the present work, different configurations like single stage, two stage are considered. Different geometries like 1D planar, 2D rectangular, 2D axisymmetric cylindrical are also considered. Also, different optimization algorithms in the inverse analysis are used, such as genetic algorithm, global search algorithm, pattern search algorithm, simulated annealing etc.

Dr Daya Shankar

Dr. Daya Shankar

Thesis title :: Analysis and Scaling of Coupled Neutronic Thermal Hydraulic Instabilities of Supercritical Water-Cooled Reactor
Co-supervisor :: Prof. Manmohan Pandey, IIT Guwahati
Defended on :: October 08, 2018
Now affiliated to :: School of Technology, Woxsen University
Hyderabad, Telangana 502345, India
Contact details :: iitdaya@gmail.com
daya.shankar@woxsen.edu.in

Publications in International Journals (from the thesis)

  1. D Shankar, DN Basu and M Pandey (2017), Development and Analysis of a Novel Scaling Methodology for Stability Appraisal of Supercritical Flow Channels, Nuclear Engineering and Design, Vol. 323, pp. 46-55, DOI: 10.1016/j.nucengdes.2017.07.030
  2. D Shankar, M Pandey and DN Basu (2018), Parametric Effects on Coupled Neutronic-Thermohydraulic Stability Characteristics of Supercritical Water Cooled Reactor, Annals of Nuclear Energy, Vol. 112, pp. 120-131, DOI: 10.1016/j.anucene.2017.10.008

Publications in International Conference Proceedings (from the thesis)

  1. D Shankar, DN Basu and M Pandey (2013), Study on Design of Scaled Down Test Facilities for Investigation of Instabilities in Supercritical Water Reactor, Proc. 21st International Conference on Nuclear Engineering (ICONE21), Chengdu, China, July 29 – August 02, Paper No. ICONE21-16638
  2. D Shankar, M Pandey and DN Basu (2018), Coupled-Neutronic-Thermalhydraulic Stability Appraisal of Supercritical Forced Flow Channels Following Lumped Parameter Approach, Proc. 16th International Heat Transfer Conference (IHTC-16), Beijing, China, August 10-15, Paper ID IHTC16-23961
  3. D Shankar, DN Basu and M Pandey (2019), Neutronics-Coupled Thermal Hydraulic Calculation of SCWR under Seismic-wave Acceleration, Proc. 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2019), Roorkee, India, December 28-31, Paper ID IHMTC2019-NSA-830

Abstract of Thesis

Present thesis work primarily focuses on the analysis of flow instability in one of the most powerful concepts under Generation-IV nuclear reactors technology, namely, Supercritical water-cooled reactor (SCWR). Safety is the primary concern in the any nuclear reactors. Flow instabilities are one of a kind on which the current researches are going on. The reason behind that is the large density difference of the fluid through the coolant channel. Therefore, a downscaled model is required to study the complex phenomena in laboratory conditions; hence a scaled method is proposed here which is useful for the study of both the natural as well as the forced circulation system. For further analysing about the stability of the system, a simple but quite effective model has been developed as the Lumped Parameter Model (LPM). Using this model, a linear and nonlinear stability analysis have been done for the various parametric conditions. Moreover, the stability analysis due to the seismic effects on SCWR has also been considered by using the same LPM. Two types of seismic wave model have been taken into account for the analysis, first the sinusoidal acceleration and the other more realistic Kanai–Tajimi model which is used for more accurate simulation of the seismic wave. These methods are first time introduced in the SCWR.

Dr Milan KS Sarkar

Dr. Milan Krishna Singha Sarkar

Thesis title :: Computational and Experimental Assessment of Supercritical Natural Circulation Loop: Steady-state Thermalhydraulics and Stability Aspects
Defended on :: January 25, 2019
Now affiliated to :: Budge Budge Institute Of Technology
Budge Budge, West Bengal 700137, India
Contact details :: mkssarkar@gmail.com

Book Chapter (from the thesis)

  1. DN Basu and MKS Sarkar, Supercritical Natural Circulation Loop: A Technology for Future Reactors, in: L Chen and Y Iwamoto (eds.) Advanced Applications of Supercritical Fluids in Energy Systems, IGI Global, Hershey PA, USA, Ch. 6, pp. 188-214, 2017, DOI: 10.4018/978-1-5225-2047-4.ch006
  2. T Srivastava, P Sutradhar, MKS Sarkar and DN Basu, Supercritical Natural Circulation Loop: A Technology for Future Reactor, in: L Chen (eds.) Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems, IGI Global, Hershey PA, USA, Ch. 9, pp. 338-369, 2021, DOI: 10.4018/978-1-7998-5796-9.ch009

Publications in International Journals (from the thesis)

  1. MKS Sarkar, AK Tilak and DN Basu (2014), A State-of-the-art Review of Recent Advances in Supercritical Natural Circulation Loops for Nuclear Applications, Annals of Nuclear Energy, Vol. 73, pp. 250-263, DOI: 10.1016/j.anucene.2014.06.035
  2. MKS Sarkar and DN Basu (2015), Working Regime Identification for Natural Circulation Loops by Comparative Thermalhydraulic Analyses with Three Fluids under Identical Operating Conditions, Nuclear Engineering and Design, Vol. 293, pp. 187-195, DOI: 10.1016/j.nucengdes.2015.07.046
  3. MKS Sarkar and DN Basu (2017), Numerical Appraisal on the Suitability of Supercritical Condition in Natural Circulation Loop with Isothermal Boundary Conditions, International Journal of Thermal Sciences, Vol. 111, pp. 30-40, DOI: 10.1016/j.ijthermalsci.2016.08.002
  4. MKS Sarkar and DN Basu (2017), Numerical Comparison of Thermalhydraulic Aspects of Supercritical Carbon Dioxide and Subcritical Water-based Natural Circulation Loop, Nuclear Engineering and Technology, Vol. 49, No. 1, pp. 103-112, DOI: 10.1016/j.net.2016.09.007
  5. MKS Sarkar and DN Basu (2017), Influence of Geometric Parameters on Thermalhydraulic Characteristics of Supercritical CO2 in Natural Circulation Loop, Nuclear Engineering and Design, Vol. 324, pp. 402-415, DOI: 10.1016/j.nucengdes.2017.08.032

Publications in International Conference Proceedings (from the thesis)

  1. MKS Sarkar and DN Basu (2013), CFD-based Performance Analysis for a Rectangular Natural Circulation Loop with End Heat Exchangers, Proc. 22nd National and 11th International ISHMT-ASME Heat and Mass Transfer Conference, Kharagpur, India, December 28-31, Paper ID HMTC1300090
  2. MKS Sarkar and DN Basu (2015), Numerical Comparison of Flow Behavior and Heat Transfer Aspects of Supercritical CO2 and Subcritical Water based Natural Circulation Loop, Proc. 23rd International Conference on Nuclear Engineering (ICONE23), Chiba, Japan, May 17-21, Paper No. ICONE23-1279
  3. MKS Sarkar and DN Basu (2015), Effect of Inclination in Thermalhydraulics of Supercritical Natural Circulation Loop, Proc. Indian Chemical Engineering Congress (CHEMCON 2015), Guwahati, India, December 27-30, Paper ID FM-105
  4. MKS Sarkar and DN Basu (2016), Experimental and Computational Analysis of Supercritical Natural Circulation Loop, Proc. 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP2016), Allahabad, India, December 15-17, Paper No. 440.
  5. MKS Sarkar and DN Basu (2016), Effect of Geometrical Parameters on Thermalhydraulics of Supercritical Natural Circulation Loop, Proc. 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP2016), Allahabad, India, December 15-17, Paper No. 551
  6. MKS Sarkar and DN Basu (2017), Design and Numerical Performance Evaluation of a Scaled-down Supercritical Natural Circulation Loop, Proc. 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2017), Hyderabad, India, December 27-30, Paper ID IHMTC2017-11-0617
Dr. Kiran Saikia

Dr. Kiran Saikia

Thesis title :: Experimental and Numerical Investigations of Instabilities Generated in Parallel Channel Natural Circulation Boiling System
Co-supervisor :: Prof. Manmohan Pandey, IIT Guwahati
Defended on :: November 27, 2020
Contact details :: saikiakiran86@gmail.com

Publications in International Journals (from the thesis)

  1. K Saikia, M Pandey and DN Basu (2019), Numerical Investigation of the Effect of Inlet Subcooling on Flow Instabilities in a Parallel Channel Natural Circulation Boiling System, Progress in Nuclear Energy, Vol. 114, pp. 13-21, DOI: 10.1016/j.pnucene.2019.01.028
  2. K Saikia, DN Basu and M Pandey (2020), Parametric Studies on Startup Transients in Multiple Parallel Channels of a Natural Circulation Boiling System, Annals of Nuclear Energy, Vol. 138, pp. 107211, DOI: 10.1016/j.anucene.2019.107211
  3. K Saikia, DN Basu and M Pandey (2022), Numerical Characterization of Thermalhydraulics of Subcooled Flow Boiling through the Annular Core of a Test Facility, Annals of Nuclear Energy, Vol. 167, pp. 108836, DOI: 10.1016/j.anucene.2021.108836

Publications in International Conference Proceedings (from the thesis)

  1. K Saikia, RR Hansda, M Pandey and DN Basu (2017), Numerical Simulation of Parallel Channel Natural Circulation System using RELAP5 Code, Proc. 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2017), Hyderabad, India, December 27-30, Paper ID IHMTC2017
  2. SV Kasar, K Saikia, KN Iyer, M Pandey and DN Basu (2017), Experimental Study of Cold Startup in Parallel Channel Natural Circulation System, Proc. 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2017), Hyderabad, India, December 27-30, Paper ID IHMTC2017-11-1117
  3. K Saikia, DN Basu and M Pandey (2018), Effect of Subcooling on the Instabilities of a Two-Phase Natural Circulation System. Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper No. 512
  4. K Saikia, DN Basu and M Pandey (2019), CFD Simulation of Local Characteristics of Flow Boiling of Water in a Vertical Annulus, Proc. 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2019), Roorkee, India, December 28-31, Paper ID IHMTC2019-MPF-735

Abstract of Thesis

The two-phase natural circulation process is regarded as an efficient mode of energy transmission in boiling systems owing to the passive safety and absence of prime movers. However, flow instability is a vital issue in natural circulation boiling systems.This thesis explores a parallel channel natural circulation boiling system to identify relevant thermal-hydraulic characteristics. The focus of this study is on the Parallel channelNatural Circulation Test Facility(PCNCTF), which is a scaled-down version of the Advanced Heavy Water Reactor (AHWR). Unlike regular parallel channel systems that generally have an even number of channels (mostly two channels), PCNCTF is a three-channel systemthatadds complexities to its dynamics.The thermal-hydraulic instabilities associated with this system are evaluated experimentally, as well as numerically. During boiling operations, the oscillatory behavior of the mass flow transients is observed,which is characterized as density wave oscillations (DWO). The responseof flow rate transients subjected to different system pressure, power inputs,and inlet subcooling are thoroughly investigated. Typically, a Type-Idensity wave oscillation (DWO) is identified by large amplitude out-of-phase oscillations with multiple harmonic frequencies. Usually, the inception of instability can be delayed by first pressurizing the loop externally with N2before applying heat. At constant system pressure, the amplitude and frequency of flow instability can be controlled by regulating input power and inlet subcooling.
To support the experimental study, a 1-D model of the parallel channel test facility is developed to perform numerical simulations for different operating conditions. Simulations are also carried out for differentcore hydraulic diameter. The commercial code RELAP5/MOD3.2 is employed to solve the two-phase conservation equations. Numerical simulation is performed on mass flow oscillations that appear in the startup process of the parallel channel system. An extensive investigation is made to demonstrate the influence of associated geometric and operating parameters on such oscillations. All the parallel channels undergo a prolonged period of single-phase operation initially, characterized by low flow rates and consistent rise in bulk temperature. It is followed by large-amplitude geyseringfluctuations in flow rate and void fraction, on the initiation of the two-phase mode. Geysering may also lead to reverse flow in one of the three parallel channels by forming a local loop between two adjacentchannels. The role of initial pressure in subsiding the startup transients is considerably more significant than other parameters. An augmented initial pressure is capable of neutralizing oscillations and removing any reversed flow and geysering in all the channels.
Inlet subcooling is considered as one of the significant parameters in boiling flow systems. A numerical analysis of the influence of inlet subcooling on flow oscillations is done under different system pressures and input power. For a fixed set of inputs, the flow tends to become steady beyond a specificvalue of subcooling, below which instabilities appear. For high degrees of inlet subcooling, a particular type of superimposed DWO is identified. Flow oscillations of the three channels may be in-phase or out-of-phase depending upon imposed inlet subcooling. However, the scope of the 1-D code is limited since it is unable to calculate the local flow characteristics. A computational fluid dynamics code ANSYS Fluent 15.0 is used to simulate subcooled flow boiling through the annularcore section of PCNCTF. For that purpose, a 2-D axisymmetric model is employed using the RPI boiling model in the Euler-Euler framework. Three important transition locations can be located along the heated surface concerning subcooled boiling. While ONB corresponds to the locationof wall vapor volume fraction becoming positive, OSV exhibits an enhancement in the slope of vapor volume fraction at the wall and thickening of the superheated liquid layer. The third transition location characterizes the point of convective heat flux shrinking to zero, signifying the inception of saturated boiling near the heated surface, which is soon followed by fully-developed saturated boiling. An increase in heat flux and a fall in mass-flux moves the location of ONB upstream. However, system pressure seems to have a negligible effect on the wall vapor generation rate, when the heat flux and mass flux is kept constant.

Dr Bhaskarjyoti SarmaDr. Bhaskarjyoti Sarma Dr Aritra MukherjeeDr. Aritra Mukherjee
Dr Bhaskarjyoti Sarma

Dr. Bhaskarjyoti Sarma

Thesis title :: Experimental Characterization of Field-Induced Droplet Dynamics
Co-supervisor :: Prof. Amaresh Dalal, IIT Guwahati
Defended on :: February 09, 2021
Now affiliated to :: Post-doctoral research fellow
Cooling Technologies Research Center, Purdue University
Contact details :: bhaskar.sarma25@gmail.com

Publications in International Journals (from the thesis)

  1. B Sarma, V Shahapure, A Dalal and DN Basu (2019), Experimental Characterization of the Growth Dynamics during Capillarity-driven Droplet Generation, Physical Review E, Vol. 100, pp. 013106, DOI: 10.1103/PhysRevE.100.013106
  2. B Sarma, V Shahapure, A Dalal and DN Basu (2020), Magnetowetting Dynamics of Sessile Ferrofluid Drops on Soft Surface, Soft Matter, Vol. 16, pp. 970-982, DOI: 10.1039/C9SM01944H
  3. B Sarma, S Kumar, A Dalal, DN Basu and D Bandyopadhyay (2021), Electric Discharge Mediated Jetting, Crowning, Bursting, and Atomization of a Droplet, Physical Review Applied, Vol. 15, pp. 014005, DOI: 10.1103/PhysRevApplied.15.014005
  4. B Sarma, A Dalal and DN Basu (2022), Interfacial Dynamics of Viscous Droplets Impacting a Superhydrophobic Candle Soot Surface: Overview and Comparison, Physics of Fluids, Vol. 34, pp. 012121, DOI: 10.1063/5.0070828

Publications in International Conference Proceedings (from the thesis)

  1. B Sarma, S Kumar, A Dalal, DN Basu, AK Dasmahapatra and D Bandyopadhyay (2016), Instability and Breaking of Aqueous Droplet on a Dielectric Coated Electrode, Proc. Complex Fluids (Comflu 2016), Hyderabad, India, December 12-14
  2. B Sarma, S Pokhrel, S Kumar, A Dalal, D Bandyopadhyay and DN Basu (2018), Prediction of Sauter Mean Diameter of Spray during Electric Discharge Mediated Bursting of a Droplet, Proc. International Conference on Recent Innovations and Developments in Mechanical Engineering, Shillong, India, November 8-10, Paper No. 251
  3. V Shahapure, B Sarma, A Dalal and DN Basu (2018), High Speed Imaging and Analysis of Drop Formation, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper No. 680
  4. B Sarma, DN Basu and A Dalal (2018), Universal Scaling Laws in Drop-on-deman Generation from a Yarn, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper No. 467
  5. B Sarma, DN Basu and A Dalal (2019), Droplets Impacting upon Superhydrophobic Surfaces, Fluids and Health 2019 Conference: Fluid Dynamics Disease Transmission, Cargese, France, July 23 - August 2 (Oral Presentation Only)
  6. B Sarma, A Dalal and DN Basu (2019), Transient Interfacial Dynamics of Viscous Droplets Impacting on Superhydrophobic Surfaces, Proc. 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2019), Roorkee, India, December 28-31, Paper ID IHMTC2019-MNT-868

Publications in National Conference Proceedings (from the thesis)

  1. B Sarma, S Kumar, A Dalal, DN Basu, AK Dasmahapatra and D Bandyopadhyay (2017), Directional Motion of Nanoparticle Laden Droplets on Micro-Fiber Highway, Proc. Nano India 2017, Delhi, India, March 15-16
  2. B Sarma, DN Basu and A Dalal (2019), Dynamics of Droplet Generation in a Critically Low Weber Number Flow, Proc. Indian Conference on Applied Mechanics (INCAM-2019), Bengaluru, India, July 3-5, Paper No. 236

Abstract of Thesis

The manipulation of a discrete liquid droplet or a group of droplets with or withoutthe deformation of the liquid-vapour interface in the presence of an externally stim-ulating field is an integral part ofLab-On-Chipdevices, which in turn determinesthe performance of target applications. A detailed appraisal of the underlying rich physics associated with the deformation and/or disruption of the continuous two-phase interface and the behaviour of the contact line during the actuation of adroplet over an open surface or inside a closed channel, engendered in the presenceof an external force, apparently contribute towards enhancing the efficacy of numerous microfluidics applications. In this regard, a plethora of complex hydrodynamicfeatures during actuation, mixing, merging, or splitting of discrete droplets havebeen unfurled by the scientific community over the past years. However, owing tothe growing demand for microfluidics platforms in a host of cutting-edge engineeringand biomedical applications, it has become necessary to assess the existing or noveldroplet-based physical systems more comprehensively. Thanks to the advancementof high-speed visualization tools and computational techniques, the latter task hasbecome easier nowadays. The present thesis work draws enormous motivation from the aforementioned observations and makes an honest attempt to uncover the richphysics associated with the behaviour of single liquid droplets in the presence of ex-ternal potentials, such as electric field, magnetic field, imposed inertia, etc., in a fewinteresting and unexplored physical systems. The problems addressed within the scope of the present thesis include the growth dynamics of a droplet from a yarn,softness mediated magnetowetting of sessile ferrofluid droplets, electric-discharge-mediated atomization of a conducting sessile droplet, and impact dynamics of vis-cous droplets on a superhydrophobic surface. Overall, the focus has been laid on experimentally characterizing the temporal evolution of the shape and contact line(s)during the growth/deformation phase of a droplet and the subsequent atomizationdynamics of the primary droplet. Apart from the externally applied field, the effectof thermophysical properties of the liquid and properties of the substrate in contact have also been characterized during the systematic experimental investigation of theaforementioned systems. High-speed imaging/videography techniques are used pri-marily to analyze the intricate physical details of the systems under consideration.Also, the experimental results are strengthened by scaling analysis and numerical simulations. The comprehensive experimental analysis of each system unveils several interesting hydrodynamic features, such as liquid jet formation, crown formation,bursting ejecta sheet, lamella ejection, capillary pinch-off, high-speed hair-like jetsemanating from a parent droplet exposed to different external stimulations. The aforementioned flow morphologies contribute enormously towards the effective at-omization of the parent droplet, desirable for many microfluidics applications. Thecontributions from this thesis work are expected to pave the way for several newresearch avenues in microfluidics.

Dr Aritra Mukherjee

Dr. Aritra Mukherjee

Thesis title :: Development of Pseudopotential-Based LBM Solver to Explore the Microdynamics of Liquid-Vapor Phase Change Processes
Co-supervisor :: Dr. Pranab K Mondal, IIT Guwahati
Defended on :: August 27, 2022
Contact details :: ammaritra@gmail.com

Publications in International Journals (from the thesis)

  1. A Mukherjee, DN Basu and PK Mondal (2021), Algorithmic Augmentation in the Pseudopotential-based Lattice Boltzmann Method for Simulating the Pool Boiling Phenomenon with High-density Ratio, Physical Review E, Vol. 103, pp. 053302, DOI: 10.1103/PhysRevE.103.053302
  2. A Mukherjee, DN Basu and PK Mondal (2022), Mesoscopic Characterization of Bubble Dynamics in Flow Boiling following A Pseudopotential-based Approach, International Journal of Multiphase Flow, Vol. 148, pp. 103923, DOI: 10.1016/j.ijmultiphaseflow.2021.103923
  3. A Mukherjee, DN Basu, PK Mondal and L Chen (2022), Characterization of Condensation on Nanostructured Surfaces and Associated Thermal Hydraulics using Thermal Lattice Boltzmann Method, Physical Review E, Vol. 105, pp. 045308, DOI: 10.1103/PhysRevE.105.045308

Publication in International Conference Proceedings (from the thesis)

  1. A Mukherjee, DN Basu and PK Mondal (2019), Lattice Boltzmann Simulation of Periodic Bubble Nucleation, Growth and Departure in Nucleate Pool Boiling, Proc. 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2019), Roorkee, India, December 28-31, Paper ID IHMTC2019-MPF-527
  2. A Mukherjee, DN Basu and PK Mondal (2020), Numerical Investigation of the Effect of Surface Topology on Droplet Condensation following Lattice Boltzmann Methods, Proc. 8th International and 47rd National Conference on Fluid Mechanics and Fluid Power (FMFP2020), Guwahati, India, December 9-11, Paper ID FMFP2020-244

Abstract of Thesis

The pseudopotential-based LB multiphase model has enormous potential in the simulation of phase-change heat transfer problems. It facilitates the natural development and migration of interfaces during the multiphase simulation as well as saves a lot of computational time. Along with these, this model enjoys several advantages like simple implementation procedure, excellent parallelizability, and easy applicability in complex domains. Due to these superiorities, it is becoming increasingly popular among researchers working on numerical simulation of multiphase flow. A pseudopotential model based thermal multiphase flow solver is developed as this thesis work, which is employed in several phase change heat transfer problems related to boiling and condensation.
The first problem successfully explores the capability of the pseudopotential-based thermal lattice Boltzmann model in emulating the underlying thermohydrodynamics of subcooled flow boiling in a narrow fluidic horizontal channel in detail. A two-dimensional rectangular channel with specified inlet temperature and flow rate, and exit pressure, housing a microheater at the bottom wall, is considered as the computational domain of interest. Adopted boundary conditions ensure subcooled flow boiling through the channel. The complete dynamics of bubble ebullition at the nucleation site, and subsequent flow regimes are adequately reproduced. Both bubbly and slug flow patterns are illustrated through the temporal evolution of the interface, and associated pressure drop and heat transport characteristics. Dependence of the departure characteristics on the flow rate, wall superheat and surface wettability is found to be consistent with available literature, which substantiates the competence of the present algorithm.
The next study uses the multiple-relaxation time based LB model to explore the role of surface morphology and cold spot temperature in determining the visual state of the condensate droplet, mode of nucleation and associated rates of energy and mass interactions in temperature controlled condensation process. Such a study is scarcely found in the available literature. A rectangular domain filled with saturated vapor, housing a cold spot on the bottom rough surface is considered, where the bottom surface has rectangular nanopillars to mimic a rough surface. Gradual increase in the spacing modifies the nucleation mode from top through side to bottom, while the droplet changes from Cassie to Wenzel state. A couple of phase diagrams have been developed to study the combined effect of pillar dimensions on Cassie and Wenzel drop formation. One important novelty of the present study is the consideration is non-isothermal condition within LB structure. Enhancement in the degree of subcooling at the cold spot encourages greater condensation and Cassie-to-Wenzel transition.
The same numerical framework is employed to study condensate droplet formation and movement on a microstructured surface, which has not yet been studied using LBM. Two vertical surfaces protruded with rectangular micropillars with disparate dimensions are considered for this purpose. The rectangular domain is assumed to be filled with saturated vapor initially and three separate cold spots are assumed on the cold bottom wall as nucleation sites. Condensate droplet, growth, coalescence, and movement is studied in detail through sequential temporal snapshots. It is observed that closely packed taller columns promote dropwise condensation having high heat transfer rate. Six different surface inclinations are considered to study the effect of gravitational force on condensation, which shows that a vertical surface has highest mass condensation rate and heat transfer rate due to maximum downward gravitational force.
Being motivated by the prime weakness of the pseudopotential based thermal LB model about its incapability of simulating boiling problems with a large density ratio, the last work of this thesis focuses on augmentation of the basic pseudopotential based thermal multiphase algorithm by enhancing the isotropy of the discrete equation and thermodynamic consistency of the overall formulation, to expedite simulation of pool boiling at higher-density ratios. Accordingly, modification is suggested in the discrete form of the updated interparticle interaction term, by expanding the discretization to the eighth order. The proposed amendment is successful in substantially reducing the spurious velocity in the vicinity of a static droplet, while allowing stable simulation at a much higher-density ratio under identical conditions, which is a noteworthy improvement over existing Single Relaxation Time (SRT)-LBM algorithms. Various pool boiling scenarios have been explored for a reduced temperature of 0.75, which itself is significantly lower than reported in comparable literature, in both rectangular and cylindrical domains, and also with micro- and distributed heaters. All three regimes of pool boiling have aptly been captured with both plain and structured heaters, allowing the development of the boiling curve. The predicted value of critical heat flux for the plain heater agrees with Zuber correlation within 10%, illustrating both quantitative and qualitative capability of the proposed algorithm.

Continuing doctoral students

Shikha BhuyanMs. Shikha Bhuyan Nitesh KumarMr. Nitesh Kumar Sambit MajumderMr. Sambit Majumder
Shikha Bhuyan

Ms. Shikha Bhuyan

Research field :: Computational Investigation of Natural Convection based Systems following Lattice Boltzmann Method
Latest action :: Annual Progress Seminar on July 07, 2022
Contact details :: shikhabhuyan@gmail.com
shikhabhuyan@iitg.ac.in
Additional Info :: Assistant Professor, Department of Mechanical Engineering
Tezpur University, Tezpur, Assam 784028, India.
(continuing PhD as external research scholar)

Publications in International Conference Proceedings (from the thesis)

  1. S Bhuyan and DN Basu (2017), Numerical Analysis of Effect of Prandtl Number on Natural Convection using Lattice Boltzmann Method, Proc. 24th National and 2nd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2017), Hyderabad, India, December 27-30, Paper ID IHMTC2017-09-0368
  2. S Bhuyan and DN Basu (2019), Numerical Analysis of Mixed Convection Flow using Non-Boussinesq Approximation Lattice Boltzmann Method, Proc. 25th National and 3rd International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2019), Roorkee, India, December 28-31, Paper ID IHMTC2019-NHT-641

Publication in National Conference Proceedings (from the thesis)

  1. S Bhuyan and DN Basu (2017), Study of Flow Behavior of Natural Convection for Different Prandtl Number using Lattice Boltzmann Method, Proc. 1st National Conference in Sustainable Mechanical Engineering: Today and Beyond (SMETB), Tezpur, India, March 24-25
Nitesh Kumar

Mr. Nitesh Kumar

Research field :: Computational & Experimental Apprisal of Supercritical Heat Transfer at Mini- & Microscale
Latest action :: Annual Progress Seminar on November 25, 2021
Contact details :: enggnitesh2014@gmail.com
nites176103018@iitg.ac.in

Book Chapter (from the thesis)

  1. N Kumar, DN Basu and L Chen, Effect of Flow Acceleration and Buoyancy on Thermalhydraulics of sCO2 in Mini/Micro-Channel, in: L Chen (eds.) Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems, IGI Global, Hershey PA, USA, Ch. 5, pp. 161-182, 2021, DOI: 10.4018/978-1-7998-5796-9.ch005

Publications in International Journals (from the thesis)

  1. N Kumar and DN Basu (2021), Role of Buoyancy on the Thermalhydraulic Behavior of Supercritical Carbon dioxide Flow through Horizontal Heated Minichannel, International Journal of Thermal Sciences, Vol. 168, pp. 107051, DOI: 10.1016/j.ijthermalsci.2021.107051
  2. N Kumar and DN Basu (2022), Thermalhydraulic Comparison of Supercritical Fluids in Minichannel Heat Sink to Assess the Suitability of Macroscopic Scaling Rules, Nuclear Engineering and Design, Vol. 392, pp. 111750, DOI: 10.1016/j.nucengdes.2022.111750

Publication in International Conference Proceedings (from the thesis)

  1. N Kumar and DN Basu (2019), Computational Appraisal of the Thermalhydraulic Characteristics of Supercritical Carbon dioxide in Heated Minichannel for HVAC Applications, Proc. International Conference on Sustainable Energy and Green Technology (SEGT2019), Bangkok, Thailand, December 11-14, Paper ID 276, IOP Conference Series: Earth and Environmental Science, Vol. 463, DOI: 10.1088/1755-1315/463/1/012048
  2. N Kumar and DN Basu (2020), Computational Analysis of Thermalhydraulics of Supercritical CO2 in Horizontal Finned Square Microchannel Heat-sink, Proc. 8th International and 47th National Conference on Fluid Mechanics and Fluid Power (FMFP2020), Guwahati, India, December 9-11, Paper ID FMFP2020-255
  3. N Kumar and DN Basu (2021), Numerical Investigation on Heat Transfer Coefficient of Supercritical CO2 in A Extended Surface Micro Heat-sink, Proc. 26th National and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC 2021), Chennai, India, December 17-20, Paper ID: IHMTC2021-201
  4. N Kumar and DN Basu (2022), Analysis of Thermal Performance for Supercritical Fluid Flowing in a Microchannel Heat Sink Utilizing Internal Fins, Proc. 7th Thermal and Fluids Engineering Conference (TFEC), Las Vegas, USA, May 15-18, Paper ID: TFEC-2022-40865
  5. N Kumar and DN Basu (2022), Flow Dynamics in Transient Heat Transfer of Carbon dioxide at Supercritical Pressure in Microchannel, Proc. 1st International Conference in Fluid Thermal and Energy Systems, Calicut, India, June 9-11, Paper ID: ICFTES2022–TS–163
Sambit Majumder

Mr. Sambit Majumder

Research field :: Algorithmic Improvement in Immersed Boundary based Lattice Boltzmann Method
Co-supervisor :: Dr. Ganesh Natarajan, IIT Pallakad
Latest action :: Annual Progress Seminar on December 13, 2021
Contact details :: sambit.majumder@gmail.com
sambit.majumder@iitg.ac.in
Additional Info :: Trainee Teacher, Department of Mechanical Engineering
NIT Meghalaya, Shillong-793003, Meghalaya, India.
(continuing PhD as external research scholar)

Publications in International Journals (from the thesis)

  1. S Majumder, A Ghosh, DN Basu and G Natarajan (2022), Revisiting the Partially-Saturated-Cells Method for Incompressible Flows with Stationary and Moving Bodies, Computers and Mathematics with Applications, Vol. 110, pp. 19-39, DOI: 10.1016/j.camwa.2022.01.034
  2. S Majumder, A Ghosh, DN Basu and G Natarajan (2022), Computational Assessment of Immersed Boundary-Lattice Boltzmann Method for Complex Moving Boundary Problems, Computational Particle Mechanics (article in press), DOI: 10.1007/s40571-022-00487-5

Publication in International Conference Proceedings (from the thesis)

  1. A Ghosh, S Majumder, G Natarajan and DN Basu (2018), Comparative Study of Two Immersed Boundary Approaches in the Lattice Boltzmann Framework, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper ID 800
  2. S Majumder, A Ghosh, DN Basu and G Natarajan (2019), Development of An Immersed Boundary-Thermal Lattice Boltzmann Solver for Fluid-particle Interaction in Energy Management Systems, Proc. International Conference on Sustainable Energy and Green Technology (SEGT2019), Bangkok, Thailand, December 11-14, Paper ID 236, IOP Conference Series: Earth and Environmental Science, Vol. 463, DOI: 10.1088/1755-1315/463/1/012044
  3. S Majumder, A Ghosh, DN Basu and G Natarajan (2020), Computational Assessment of Immersed Boundary-Lattice Boltzmann Method for Complex Moving Boundary Problems, Proc. 8th International and 47th National Conference on Fluid Mechanics and Fluid Power (FMFP2020), Guwahati, India, December 9-11, Paper ID FMFP2020-249
Tanuj SrivastavaMr. Tanuj Srivastava Ashok K GondMr. Ashok K Gond Biswajyoti BaishyaMr. Biswajyoti Baishya
Tanuj Srivastava

Mr. Tanuj Srivastava

Research field :: Nonlinear Dynamics & Stability Appraisal of Supercritical Natural Circulation Loop
Latest action :: Annual Progress Seminar on October 29, 2021
Contact details :: tanujsrivastava28@gmail.com
srivasta@iitg.ac.in

Book Chapter (from the thesis)

  1. T Srivastava, P Sutradhar, DN Basu and L Chen, An Overview of the Dynamics of Supercritical Natural Circulation Loops, in: A Mukhopadhyay, S Sen, DN Basu and S Mondal (eds.) Dynamics and Control of Energy Systems, Springer Nature, Gateway East, Singapore, Ch. 5, pp. 85-110, 2019, DOI: 10.1007/978-981-15-0536-2_5
  2. T Srivastava, P Sutradhar, MKS Sarkar and DN Basu, Supercritical Natural Circulation Loop: A Technology for Future Reactor, in: L Chen (eds.) Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems, IGI Global, Hershey PA, USA, Ch. 9, pp. 338-369, 2021, DOI: 10.4018/978-1-7998-5796-9.ch009

Publications in International Journals (from the thesis)

  1. T Srivastava and DN Basu (2022), Numerical Characterization of Heat Transfer Deterioration in Supercritical Natural Circulation Loop and Role of Loop Inclination, Nuclear Engineering and Design, Vol. 390, pp. 111704, DOI: 10.1016/j.nucengdes.2022.111704

Publication in International Conference Proceedings (from the thesis)

  1. T Srivastava and DN Basu (2020), Fluid-to-fluid Scaling of Supercritical Natural Circulation Loop under Steady-state Condition, Proc. 8th International and 47th National Conference on Fluid Mechanics and Fluid Power (FMFP2020), Guwahati, India, December 9-11, Paper ID FMFP2020-256
  2. P Sutradhar, T Srivastava and DN Basu (2021), Numerical Study of Supercritical Natural Circulation Loop under Condition of Different Inclination and Diameter, Proc. 26th National and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC 2021), Chennai, India, December 17-20, Paper ID IHMTC2021-197
Ashok K Gond

Mr. Ashok K Gond

Research field :: Thermalhydraulic Characterization of Supercritical Fluid in Rod-bundles
Co-supervisor :: Prof. Amaresh Dalal, IIT Guwahati
Latest action :: State-of-Art Seminar on June 14, 2022
Contact details :: ashok1994@iitg.ac.in

Publication in International Conference Proceedings (from the thesis)

  1. AK Gond, DN Basu and A Dalal (2021), Thermalhydraulic Assessment of Supercritical CO2 filled Double-cooled Annular Channel, Proc. 26th National and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference (IHMTC 2021), Chennai, India, December 17-20, Paper ID IHMTC2021-563
Biswajyoti Baishya

Mr. Biswajyoti Baishya

Research field :: Development of Multiphase Lattice Boltzmann Solver for Phase-change Problems
Latest action :: State-of-the-Art Seminar on June 14, 2022
Contact details :: baishyabiswajyoti@gmail.com
bbiswajyoti@iitg.ac.in

Completed Masters' students

Urmi S TejaswiniMs. Urmi S Tejaswini Laxmikant S KoradeMr. Laxmikant S Korade Abhilash TilakMr. Abhilash Tilak Yogesh RatreMr. Yogesh Ratre Mayur KrishnaniMr. Mayur Krishnani Satyendra N BaroMr. Satyendra N Baro
Urmi S Tejaswini

Ms. Urmi S Tejaswini

Thesis title :: CFD Investigation of Heat Transfer Characteristics and Scaling of Supercritical Fluid Systems
Co-supervisor :: Prof. Manmohan Pandey, IIT Guwahati
Defended on :: May 30, 2013
Presently at :: GE Aviation, Bengaluru, India

Publication in International Journals (from the thesis)

  1. US Tejaswini, DN Basu and M Pandey (2017), Improved Scaling Analysis for Heat Transfer in a Circular Tube with Various Supercritical Fluids using Computational Fluid Dynamics Simulations, Heat Transfer Engineering, Vol. 38, No. 2, pp. 149-161, DOI: 10.1080/01457632.2016.1156432

Publications in International Conference Proceedings (from the thesis)

  1. US Tejaswini, DN Basu and M Pandey (2013), CFD Investigation of Heat Transfer Deterioration in Supercritical Water Flowing through Vertical Annular Channels, Proc. 21st International Conference on Nuclear Engineering (ICONE21), Chengdu, China, July 29 – August 02, Paper No. ICONE21-16720
  2. US Tejaswini, DN Basu and M Pandey (2013), Scaling Analysis of Heat Transfer for Supercritical Fluids through CFD Simulations, Proc. 22nd National and 11th International ISHMT-ASME Heat and Mass Transfer Conference, Kharagpur, India, December 28-31, Paper ID HMTC1300096
Laxmikant S Korade

Mr. Laxmikant S Korade

Thesis title :: Computational Investigation of the Effect of Infiltration Heat Recovery through A Building Envelope on Indoor Air Flow Pattern
Defended on :: June 03, 2014
Abhilash Tilak

Mr. Abhilash Tilak

Thesis title :: Nonlinear Stability Analysis and Dynamic Performance Evaluation of a Reactangular Supercritical Natural Circulation Loop
Defended on :: June 17, 2014
Presently at :: Assistant Professor, BITS Pilani, KK Birla Goa Campus

Publications in International Journals (from the thesis)

  1. MKS Sarkar, AK Tilak and DN Basu (2014), A State-of-the-art Review of Recent Advances in Supercritical Natural Circulation Loops for Nuclear Applications, Annals of Nuclear Energy, Vol. 73, pp. 250-263, DOI: 10.1016/j.anucene.2014.06.035
  2. AK Tilak and DN Basu (2015), Computational Investigation of the Dynamic Response of a Supercritical Natural Circulation Loop to Aperiodic and Periodic Excitations, Nuclear Engineering and Design, Vol. 284, pp. 251-263, DOI: 10.1016/j.nucengdes.2014.12.028

Publication in International Conference Proceedings (from the thesis)

  1. AK Tilak and DN Basu (2015), Effect of Geometric and Operating Parameters on the Steady-state Characteristics of an SCNCL, Proc. 23rd National and 1st International ISHMT-ASTFE Heat and Mass Transfer Conference (HMTC2015), Trivandrum, India, December 17-20, Paper ID IHMTC2015-6
Yogesh Ratre

Mr. Yogesh K Ratre

Thesis title :: Investigation of the Effect of Channel Inclination on Adiabatic Flow Pattern Maps for Small Diameter Channel: An Experimental Study
Defended on :: June 30, 2014
Presently at :: Chhattisgarh State Forest Services
Mayur Krishnani

Mr. Mayur Krishnani

Thesis title :: Computational Stability Appraisal of Single-phase Natural Circulation Loop
Defended on :: June 17, 2015
Presently at :: Oil & Natural Gas Corporation Ltd.

Publications in International Journals (from the thesis)

  1. M Krishnani and DN Basu (2016), On the Validity of Boussinesq Approximation in Transient Simulation of Single-phase Natural Circulation Loops, International Journal of Thermal Sciences, Vol. 105, pp. 224-232, DOI: 10.1016/j.ijthermalsci.2016.03.004
  2. M Krishnani and DN Basu (2017), Computational Stability Appraisal of Rectangular Natural Circulation Loop: Effect of Loop Inclination, Annals of Nuclear Energy, Vol. 107, pp. 17-30, DOI: 10.1016/j.anucene.2017.04.012
Satyendra N Baro

Mr. Satyendra N Baro

Thesis title :: Development and Experimental Investigation on a Supercritical Natural Circulation Loop
Defended on :: July 14, 2015
Dr. Harshad S GaikwadDr. Harshad S Gaikwad Chetan BoroleMr. Chetan Borole Pushkin MittalMr. Pushkin Mittal Sujeet KaushikMr. Sujeet Kaushik Uddipta SinghaMr. Uddipta Singha Sambit MajumderMr. Sambit Majumder
Dr. Harshad S Gaikwad

Dr. Harshad S Gaikwad

Thesis title :: Some Aspects of Microscale Thermo-Fluidic Transport
Co-supervisor :: Dr. Pranab K Mondal, IIT Guwahati
Defended on :: June 22, 2016
Presently at :: Research scholar, IIT Guwahati

Publications in International Journals (from the thesis)

  1. H Gaikwad, DN Basu and PK Mondal (2017), Non-linear Drag Induced Irreversibility Minimization in a Viscous Dissipative Flow Through a Micro-porous Channel, Energy, Vol. 119, pp. 588-600, DOI: 10.1016/j.energy.2016.11.020
  2. H Gaikwad, DN Basu and PK Mondal (2017), Slip Driven Micro-pumping of Binary System with A Layer of Non-conducting Fluid under Electrical Double Layer Phenomenon, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 518, pp. 166-172, DOI: 10.1016/j.colsurfa.2017.01.024
  3. HS Gaikwad, PK Mondal, DN Basu, N Chimres and S Wongwises (2019), ­­Analysis of the Effects of Joule Heating and Viscous Dissipation on Combined Pressure-driven and Electrokinetic Flows in A Two-parallel Plate Channel with Unequal Constant Temperatures, IMechE Part E: Journal of Process Mechanical Engineering, Vol. 233, No. 4, pp. 871-879, DOI: 10.1177/0954408918809612

Publication in International Conference Proceedings (from the thesis)

  1. H Gaikwad, DN Basu and PK Mondal (2015), Irreversibility Analysis of a Non-Newtonian Liquid Film Falling Down on Inclined Porous Heated Wall, Proc. Indian Chemical Engineering Congress (CHEMCON 2015), Guwahati, India, December 27-30, Paper ID FM-103
  2. HS Gaikwad, C Borole, DN Basu and PK Mondal (2016), EMHD Micro-pumping of a Non-conducting Shear-thinning Fluid under EDL Phenomena, Proc. 6th International and 43rd National Conference on Fluid Mechanics and Fluid Power (FMFP2016), Allahabad, India, December 15-17, Paper No. 43
Chetan Borole

Mr. Chetan Borole

Thesis title :: Computational Code Development for Simulation of Particle Sedimentation using Lattice Boltzmann Method
Defended on :: June 23, 2016
Presently at :: Johnson Controls-Hitachi Air Conditioning India Ltd.

Publication in International Conference Proceedings (from the thesis)

  1. C Borole and DN Basu (2015), Lattice Boltzmann Simulation of Mixed Convection in a Cavity with Parallel Moving Lids, Proc. Indian Chemical Engineering Congress (CHEMCON 2015), Guwahati, India, December 27-30, Paper ID FM-099
Pushkin Mittal

Mr. Pushkin Mittal

Thesis title :: Analysis of Steric Effects on Flow through a Micro-channel using Slip Boundary Condition
Co-supervisor :: Dr. Pranab K Mondal, IIT Guwahati
Defended on :: June 02, 2017
Presently at :: Mercedes-Benz Research & Development India Private Limited
Sujeet Kaushik

Mr. Sujeet Kaushik

Thesis title :: Computational Investigation of Heat Transfer Deterioration in a Supercritical CO2-driven NCL
Defended on :: June 27, 2017
Uddipta Singha

Mr. Uddipta Singha

Thesis title :: Stability Analysis and Dynamic Response of a Boiling Channel using a Lumped Parameter Model
Defended on :: June 28, 2017
Presently at :: Research scholar, IIT Bombay
Sambit Majumder

Mr. Sambit Majumder

Thesis title :: Development of an Immersed Boundary-Lattice Boltzmann Solver
Co-supervisor :: Dr. Ganesh Natarajan, IIT Guwahati
Defended on :: July 06, 2017
Presently at :: Research scholar, IIT Guwahati

Publication in International Conference Proceedings (from the thesis)

  1. A Ghosh, S Majumder, G Natarajan and DN Basu (2018), Comparative Study of Two Immersed Boundary Approaches in the Lattice Boltzmann Framework, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper ID 800
Pankaj KaushikMr. Pankaj Kaushik Arnab GhoshMr. Arnab Ghosh Alisha DaimariMs. Alisha Daimari Manjul K MishraMr. Manjul K Mishra Vijay B ShahapureMr. Vijay B Shahapure Atul BhardwajMr. Atul Bhardwaj
Pankaj Kaushik

Mr. Pankaj Kaushik

Thesis title :: Computational Analyses of Single-phase and Supercritical Natural Circulation Loop
Defended on :: June 08, 2018
Presently at :: Cadila Pharmaceuticals Limited
Arnab Ghosh

Mr. Arnab Ghosh

Thesis title :: Development of a Parallelized Immersed Boundary - Lattice Boltzmann Solver for Fluid-Particle Interactions
Co-supervisor :: Dr. Ganesh Natarajan, IIT Guwahati
Defended on :: June 22, 2018
Presently at :: Research scholar, Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Publication in International Conference Proceedings (from the thesis)

  1. A Ghosh, S Majumder, G Natarajan and DN Basu (2018), Comparative Study of Two Immersed Boundary Approaches in the Lattice Boltzmann Framework, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper ID 800
Alisha Daimari

Ms. Alisha Daimari

Thesis title :: Computational Appraisal of Enhancement in Mixing with the Use of Baffles in Y-junction Microchannels
Defended on :: June 27, 2018
Presently at :: Cummins Technical Centre India
Manjul K Mishra

Mr. Manjul K Mishra

Thesis title :: Development of a Multigrid Lattice Boltzmann Solver for Fluid Flow Simulations
Co-supervisor :: Dr. Ganesh Natarajan, IIT Guwahati
Defended on :: July 01, 2019
Presently at :: Master's scholar, IIT Kanpur
Vijay Shahapure

Mr. Vijay B Shahapure

Thesis title :: Experimental Characterization of the Behavior of Ferrofluidic Droplet in Magnetic Field
Defended on :: July 01, 2019

Publication in International Conference Proceedings (from the thesis)

  1. V Shahapure, B Sarma, A Dalal and DN Basu (2018), High Speed Imaging and Analysis of Drop Formation, Proc. 7th International and 45th National Conference on Fluid Mechanics and Fluid Power (FMFP2018), Mumbai, India, December 10-12, Paper No. 680
Atul Bhardwaj

Mr. Atul K Bhardwaj

Thesis title :: Development of Thermal Immersed Boundary-Lattice Boltzmann Solver
Defended on :: July 07, 2020
Shakti SinghMr. Shakti Singh Jayanta GogoiMr. Jayanta Gogoi Soumitra SamaiMr. Soumitra Samai Sourabh PandaMr. Sourabh Panda
Shakti Singh

Mr. Shakti Singh

Thesis title :: Numerical Simulation of Supercritical Natural Circulation Loop
Defended on :: July 07, 2020
Jayanta Gogoi

Mr. Jayanta Gogoi

Thesis title :: Development of Pseudo-Potential Immersed Boundary-Lattice Boltzmann Solver for Multiphase Flow
Defended on :: July 09, 2020
Soumitra Samai

Mr. Soumitra Samai

Thesis title :: Development of Computational Platform for Simulation of High-pressure Heat Transfer System
Defended on :: July 09, 2020
Sourabh Panda

Mr. Sourabh Panda

Thesis title :: Thermodynamic Optimisation of Supercritical Power and Combined Cycles
Co-supervisor :: Dr. Amaresh Dalal, IIT Guwahati
Defended on :: May 24, 2021

Continuing Masters' students

Krunal GautamMr. Krunal Gautam Santosh K KaithalMr. Santosh K Kaithal Arkaprava DeMr. Arkaprava De

Completed UG projects

Avnish & AshishMr. Avnish Goyal
Mr. Ashish Soni
Saurav & RoushanMr. Saurav Mohanty
Mr. Roushan Sinha
Gunajeet & KishorMr. Gunajeet Das
Mr. Kishor Malakar
Yash & YashpalMr. Yash Kulkarni
Mr. Yashpal Singh
Hridyansh & NamanMr. Hridyansh Verma
Mr. Namal Pal
Lahari, Pradeep & AmarnathMs. Galla Lahari
Mr. Pradeep Kumar G
Mr. Sapavath Amarnath

...missing a few 🙁

Projects staffs

Pranab SutradharMr. Pranab Sutradhar Dr. Kiran SaikiaDr. Kiran Saikia Aritra MukherjeeMr. Aritra Mukherjee

Summer interns

Debendra N SarkarMr. Debendra N Sarkar Gunajeet DasMr. Gunajeet Das Karnajit DebnathMr. Karnajit Debnath Anindita A PhukanMs. Anindita A Phukan Dhritiman DuttaMr. Dhritiman Dutta Aveerup DebMr. Aveerup Deb Subham PokhrelMr. Subham Pokhrel
Roshan M RaoMr. Roshan Mani Rao Mohit HasijaMr. Mohit Hasija

...missing a few 🙁

PG projects at IIEST Shibpur

UG projects at IIEST Shibpur