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Prime Minister's Research Fellow

Microfluidics and Microscale Transport Processes Laboratory,

Mechanical Engineering, IIT GUWAHATI

Curriculum vitae


Dhananjay Kumar is a Ph.D. student in the Department of Mechanical Engineering at the Indian Institute of Technology Guwahati (IIT), India. He received Master of Technology (M.Tech) degree in Thermal Power Engineering from the National Institute of Technology Tiruchirappalli Tamil Nadu, India in July 2019. He received Bachelor of Technology (B.Tech)  in Mechanical Engineering, from R.P Sharma Institute of Technology, Patna in August 2015. He joined IIT Guwahati in July 2020 under the supervision of Dr. Pranab Kumar Mondal. He is a recipient of the prestigious Prime Minister's Research Fellowship (PMRF), awarded to the country's excellent doctoral candidates to pursue a Ph.D. in the areas of Mechanical engineering, IIT Guwahati. His area of research interests include vortex-induced convective mixing in a microchannel. He explored the effective mixing in a laminar flow microfluidic channel with Inlet Swirl using the finite volume approach. Also, he explored electroosmotic-driven efficient micromixing for a shear-thinning (Carreau model) fluid using the soft interface, typically known as the polyelectrolyte layer (PEL). He's also doing experimental and numerical work on droplet-based mixing in a microfluidic crossflow T-junction under a uniform magnetic field.

Dr. Pranab Kumar Mondal (Associate Professor)​

C-101 (office), ME FF2A lab,​

Department of Mechanical Engineering, IIT Guwahati​

Guwahati 781039​

Ph:- 0361-2583435​

Fax:​- 0361-2582699

Email:- pranabm@iitg.ac.in

Courses undertaken during Ph.D.

Courses Course Name Grade CPI
ME 501 Advanced Engineering Mathematics BB
ME 520 Fluid Mechanics AB 8.75
ME 521 Conduction and Radiation AB
ME 543 Computational Fluid Dynamics AB


  • Cricket
  • Badminton
  • Reading, Teaching and Learning
  • Swimming
  • Pranayama
  • Listening Music

Technical Skills

  • C, C++
  • MS Office
  • ANSYS, COMSOL Multiphysics
  • Latex
  • Mendeley


  • Ph.D. Research Scholar (September 2020 - Present)

    Indian Institute of Technology, Guwahati

    Department of Mechanical Engineering (Microfluidic and Microscale)

    Fellowship : Prime Minister's Research Fellowship (September 2020 - Present)

    Research Topic : Vortex-induced convective mixing in a microchannel.​

  • M.Tech (2017-2019)

  • B.Tech (2011-2015)

Teaching Assistant (TA)

  • Teaching (March 2021-2022) at North Gauhati College

  • Teaching Assistant (March 2022-Present) at School of Technology, Assam Don Bosco University

Research Objective

A microfluidic device's dimensions are normally kept between 1 mm and 100 µm. Molecular diffusion is the only mixing mechanism since the laminar flow has a low Reynolds number and is viscous-dominated at the microscale level. Effective and efficient fluid mixing is still challenging to achieve since laminar-natured flow dominates in microfluidic channels. Effective microscale mixing should take into account factors like biological response times, chemical or biological enzyme reaction rates, gradients in partial pressure of key microlevel species in vivo systems, etc. As a result, our goal in the first research problem is to investigate the role of swirl in micromixing. In the second problem, we investigated the PEL patch-assisted electroosmotic micromixing of non-Newtonian fluid. We will also make an effort to research the droplet-based micromixing occurring inside a cross-flow T-junction in a uniform magnetic field. In the fourth problem, we'll try to find out how the channel's rotation affects the mixing phenomenon. The effect of the working fluid's rheological behavior (inelasticity, elasticity, and plasticity) on the features of mass transfer will then be examined.

Objective 1

  • To investigate the mixing of constituent components (Newtonian fluid) in a cylindrical narrow fluidic channel in presence of inlet swirl: semi analytical study.
  • Objective 2

  • To investigate Electroosmotic driven micromixing of Carreau fluid using polyelectrolyte layers arrangement: numerical study.
  • Objective 3

  • To investigate Droplet-based mixing in a microfluidic channel under magnetic field variation: an experimental and numerical study.
  • Our objective is to obtained the droplet based efficient mixing in a crossflow T-junction with Mineral oil as continuous phase and DI Water based ferrofluid as dispersed phase under the uniform magnetic field.


    PhD Journal

      Dhananjay Kumar, Sumit Kumar Mehta, Pranab Kumar Mondal “Efficient mixing of non-Newtonian fluid using polyelectrolyte layer modulated electroosmotic vortices”, Soft Matter, [Under Review].

      Dhananjay Kumar, Harshad Sanjay Gaikwad, Pranab Kumar Mondal, P Kaushik “Swirl driven solute mixing in narrow cylindrical channel”, Physics of Fluids, [MS #POF23-AR-02522].

      Sumit Kumar Mehta, Dhananjay Kumar, Pranab Kumar Mondal, Somchai Wongwise “Conjugate forced convective flow analysis in wavy solar power plant: Effect of porous metallic blocks”, ICHMT, [ICHMT-D-22-03839].

      Sumit Kumar Mehta, Dhananjay Kumar, Pranab Kumar Mondal, Somchai Wongwise “Thermo-hydraulic characterization in wavy solar power plant: Effect of thermal dispersion”, Microsystem Technologies, [MITE-D-23-00091].

    PhD Conferences

      Sumit Kumar Mehta, Dhananjay Kumar, Pranab Kumar Mondal, Somchai Wongwises “Effect of Thermal Dispersion on Thermo-Hydraulic Characteristics for Flow through Wavy Solar Power Plant with Metallic Porous Blocks”, ESDA2022, 5th International Conference, [Best Paper, Paper ID: 18].

      Dhananjay Kumar and Pranab Kumar Mondal "Influence of axial wall slip on swirl velocity in a laminar microtube flow", FMFP-2022, 9th International and 49th National Conference, [FMFP2022-4760].

    M.Tech Journal


    • Recipient of the prestigious Prime Minister's Research Fellowship (September 2020 - Present).
    • Awarded as Teaching Assistant for the NPTEL Online Certification course “IC Engines and Gas Turbines” held from January-April 2023, IIT Guwahati, India.
    • Participated in Online workshop on “Machine Learning & Deep Learning Techniques with Applications” held from 7th - 11th January 2023 at IIT Guwahati.
    • Recipient of Best Paper award “5th International Conference on ESDA 2022” held from 31st December 2022 - 1st january 2023 at Kolkata, India.
    • Participated in the “9th Internationa and 49th National Conference of FLUID MECHANICS AND FLUID POWER (FMFP-2022)” held during 14th-16th December 2022 at IIT Roorkee, India.
    • Awarded as Teaching Assistant for the NPTEL Online Certification course “IC Engines and Gas Turbines” held from January-April 2022, IIT Guwahati, India.
    • Participated in Online workshop on “Blast and Shock Resistant Bio-inspired Functional Materials Design Methodologies” held from 10th -19th January 2022 at IIT Guwahati.
    • Participated in the “48th National Conference on of FLUID MECHANICS AND FLUID POWER (FMFP-2021)” held during 27th-29th December 2021 at BITS Pilani, Pilani Campus, Rajasthan, India.
    • Participated in “Computational Fluid Dynamics workshop” held on 15th - 16th march, 2018, NIT, Tiruchirappalli.
    • 2nd Rank holder in PG in NIT Tiruchirappalli during year 2017-19.
    • Award of excellence for highest attendance and performance for session 2014-15, B.Tech, RPSIT, Patna.

    Extra-Curricular Activities

    • Member of HUMANITTY & Pupil for Pupil committee (PPC) as a social initiative by NITT.
    • Member of college cricket team during 2013-14.
    • Got NCC certificate “A” at school level in 2008.

    Contact Details

    Dhananjay Kumar

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