Jiten C. Kalita - IIT Guwahati


Critical points and vortical structures in 3D separated viscous flows’

Of late, topological construction of velocity and skin friction field has become a powerful tool for flow field diagnostic and interpretation. In this study, we endeavour to gain some physical insight into the 3D lid driven cavity flow by a rigorous topological theory. The computed flow is post processed to identify critical points in the flow field leading to the prediction of separation, reattachment and vortical structures in the flow. The types of critical points found in the flow field is in accordance with the Poincare's formula.

Short biography:

Jiten Chandra Kalita is currently working as a Professor in the Department of Mathematics at Indian Institute of Technology Guwahati India and has been a Visiting Professor at the George Washington University, Washington DC USA. His areas of interest are numerical methods for partial differential equations and computational fluid dynamics, specifically higher order compact methods and biharmonic form of the Navier-Stokes equations. Of late Professor Kalita has shifted his research interest towards Topological Fluid Dynamics and Mathematical Biology. His current research includes the study of Vortices and their identification through topological and dynamical approaches and stability of the solution of the reaction-diffusion equations for pattern formation in nature. Professor Kalita has several journal publications in Journal of Fluid Mechanics, Journal of Computational Physics, Computers and Fluids, Physical Review E, Computer Physics Communications, International Journal for Numerical Methods in fluids, Journal of Computational and Applied Mathematics etc.