Research Projects

My broad research area is Computational Fluid Dynamics and my particular interests include error estimation and grid adaptivity, unsteady flows, unstructured mesh framework, compressible and incompressible flow solvers, biofluid dynamics, immersed boundary methods, optimisation in fluid flows and parallel computing. I also have interests in simulation and modelling in sports, and cricket in particular.

My present research is specifically focussed on developing immersed boundary solvers for a wide range of problems including non-Newtonian flows, Boussinesq and non--Boussinesq heat transfer, multiphase flows with and without phase change and hypersonic flows. We explore both sharp and diffuse interface immersed boundary methods in an unstructured finite volume framework which allows for the use of adaptive meshes and also gauge the strengths and weaknesses of these approaches. Research efforts in the recent future will focus on adding URANS capabilities and parallelise the solver before extending it to three-dimensional fluid flows for investigations of interesting flow physics in complex fluid flows involving conjugate heat transfer and fluid-structure interaction among others.

I have also been part of the research group at IIT Guwahati (led by Dr. Amaresh Dalal) working on the development of a high-resolution generic incompressible flow solver for multi-physics applications on unstructured hybrid meshes called Anupravaha-II, sponsored by the Board of Research in Nuclear Sciences. Please visit http://www.iitg.ac.in/amaresh/anupravaha/ for more details on the solver and its capabilities.

The in-house code(s) based on IB-FV approaches are under constant development and those who wish to work on these problems must have a strong background in fluid mechanics, applied mathematics and basic computer programming, preferably Fortran 90. A fair knowledge of Linux and prior experience using grid generation software ( like GAMBIT, Gridgen etc..) and post-processing tools (such as Tecplot, ViSit etc..) is also desirable. Please have a look at the publications for more information and a better picture of our research efforts.