Group
Principal Investigator
Anubhab Roy
Associate Professor
Department of Applied Mechanics and Biomedical Engineering,
Indian Institute of Technology Madras, India
Research interest:
Waves and instabilities, Particles and Flows
Anubhab Roy is an Associate Professor in the Department of Applied Mechanics & Biomedical Engineering, and Associate Faculty in the School of Sustanability, Indian Institute of Technology Madras (IIT-M), Chennai, India. He is a co-PI of the Geophysical Flows Lab (an IIT Madras Centre of Excellence), Centre for Atmospheric and Climate Sciences and Centre for Complex Systems & Dynamics. He received his PhD in Engineering Mechanics from Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bengaluru, in 2013 and B. Tech degree in Civil Engineering from Indian Institute of Technology-BHU, Varanasi (IIT-BHU) in 2006. During his PhD, he received the GFD fellowship at Woods Hole Oceanographic Institution, USA (2010). He was a postdoctoral fellow at the School of Chemical and Biomolecular Engineering, Cornell University, before joining the Fluid Mechanics group at Applied Mechanics & Biomedical Engineering-IIT-M. He was a CNRS Visiting Researcher at the Laboratoire de Physique, ENS de Lyon, France (2023), a staff member of the Geophysical Fluid Dynamics program at the Woods Hole Oceanographic Institution, USA (2022 and 2024), and a Visiting Researcher at the National Center for Atmospheric Research (NCAR-UCAR), Boulder, USA (2025). He is a recipient of the INSA Young Scientist Medal (2020) from the Indian National Science Academy, the IITM Young Faculty Recognition Award (2020), the Srimathi Marti Annapurna Gurunath Award for Excellence in Teaching (2022), the Institute Research & Development Award (IRDA) - Early Career (2024), and the Walters Prize (2025) for the best paper of 2024 in the Journal of Non-Newtonian Fluid Mechanics. He was also recognised as an Outstanding Reviewer by the Journal of Fluid Mechanics, Cambridge University Press (2025).
CV
Postdocs
Arnab Choudhury
Arnab’s current research explores particle-laden flows at low Reynolds numbers. He earned his PhD from the Department of Applied Mechanics at the Indian Institute of Technology Delhi in 2024, under the supervision of Dr. Arghya Samanta. His doctoral work focused on investigating the thermocapillary stability of surfactant-contaminated thin liquid films flowing over heated substrates across a wide range of Reynolds numbers. He obtained an M.Tech. in Engineering Mechanics in 2020 from the Indian Institute of Engineering Science and Technology, Shibpur, and a B.Tech. in Mechanical Engineering in 2017 from the Government College of Engineering and Textile Technology, Berhampore.
PhD scholars
Himanshu Mishra
Himanshu's research focuses on various geophysical flows, hydrodynamic instabilities of complex fluids, and non-linear dynamics. Currently, he is investigating the translation and orientation dynamics of anisotropic particles in oceanic flows, with the aim of better understanding the transportation of microplastics. In his previous work for his MS degree, he studied the hydrodynamic instability of multiple base state solutions that are commonly found in two-layered channel flows with a wall slip condition. Beyond his research, he has a passion for cosmology and astronomy and enjoys exploring different varieties of food cuisine.
Shravya Gundavarapu
Shravya has a keen interest in comprehending two-phase flows and interfacial flow instabilities. She has previously conducted research on the evolution of stretching liquid bridges and the dynamics of jets. At present, her focus is on studying particle-laden flows using theoretical methods.
Jyoti Prasad Rana
With a BSc and an MSc in pure mathematics, Jyoti is pursuing his doctoral research in fluid mechanics. His research focuses on droplet dynamics in viscosity-dominated flows, with a particular interest in the coagulation of marine snow and cloud droplets. He is developing his expertise in both analytical calculations and numerical simulations using the Basilisk solver. Beyond his research, Jyoti enjoys writing stories.
M S scholars
Aniket Halder
Aniket earned his Bachelor of Engineering (BE) in Civil Engineering from Jadavpur University in 2024. During his undergraduate studies, he gained valuable research experience as an Undergraduate Research Intern at the Neptune Lab at Jadavpur University, focusing on microfluidics and convective heat transfer. His bachelor's thesis involved a comprehensive analysis of various dampers in structural engineering. Following graduation, Aniket joined this lab as a Project Assistant. He is currently engaged in research on cloud microphysics, focusing on the microphysical processes that govern the formation and growth of cloud droplets, key to understanding precipitation mechanisms and improving weather prediction models.
Arabdha Bhattacharya
Arabdha's research lies in understanding charged particle interactions and collisions of droplets occurring in clouds. Before joining IIT Madras, Arabdha worked as a summer intern at Loughborough University, where he studied motility-induced phase separation shown by active Brownian particles. His research journey began at Jadavpur University during his undergraduate studies, where he worked on problems related to micro-level fluid mixing. The long-term goal of his research is to use a combination of theory, simulation, and mathematical modelling to examine various problems in microfluidics, microhydrodynamics, and soft-matter physics to explore a wide array of interdisciplinary questions. Beyond research, Arabdha loves sketching and watching movies.
Project Associates
Shariq Nisar Khan
Shariq's research focuses on numerical weather modelling, with particular interest in microphysics parameterisation and sensitivity analysis, alongside air sea interaction and climate variability. He completed his M.Tech in Atmospheric and Climate Sciences at Sindhu Central University, hosted at IIT Madras, under the supervision of Dr. Anubhab Roy. His work examines how different physical schemes within numerical models represent storm structure and intensity, and how coupling between the ocean and atmosphere shapes weather systems across different timescales. He is drawn to using numerical modelling as a tool to build a more physically grounded understanding of these processes. Outside research, he enjoys trekking, and poetry.