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Professor Arnab Atta

Multiscale Computational Fluid Dynamics Laboratory (mCFD Lab)

Department of Chemical Engineering

Indian Institute of Technology Kharagpur

Research Areas

Microscale Systems

Microfluidics, droplet dynamics, emulsions

Controlled multiphase flows in confined geometries with emphasis on droplet formation, breakup, and transport.

e.g., flow-focusing devices, T-junctions, micromixers

Macroscale Systems

Reactors, packed beds, fluidized systems

Hydrodynamics and transport phenomena in industrial-scale multiphase reactors for process intensification.

e.g., trickle-bed reactors, fluidized beds, scale-up studies

Nanoscale Systems

Interfaces, thin films, electrohydrodynamics

Interfacial instabilities and coupled physicochemical effects governing nanoscale transport processes.

e.g., thin-film breakup, EHD instabilities, interfacial flows

Selected Publications

S.G. Sontti, A. Atta
Chemical Engineering Journal, 330, 245–261 (2017)
S.G. Sontti, A. Atta
Industrial & Engineering Chemistry Research, 59, 3702–3716 (2020)
A. B. Ghosh, A. Atta
Industrial & Engineering Chemistry Research, 62, 4135–4150 (2023)
P. Puhan, A. K. Mukherjee, A. Atta
Industrial & Engineering Chemistry Research, 64, 11085 (2025)
View All Publications →

News

2026
[May 02] Accepted paper in Soft Matter on Droplet dynamics in textured flow-focusing microchannels: Effects of surface texture on deformation and transport.
[April 27] Accepted paper in Physics of Fluids on Viscous-inertial crossover in Poiseuille flow over a wavy surface.
[February 21] Accepted paper in Soft Matter on Shear-thinning rheology and geometric asymmetry govern droplet dynamics in branched microchannels.
Chiranjeevi Kanike has been awarded the Lovraj Kumar Memorial Trust (LKMT) Best PhD Dissertation of the Year Award 2025.
Continuing as Associate Editor (Canadian Journal of Chemical Engineering; Indian Chemical Engineer).