Agarwal has worked in Computational Fluid Dynamics (CFD), Computational Magnetohydrodynamics (MHD) and Electromagnetics, Computational Aeroacoustics, Multidisciplinary Design and Optimization, Rarefied Gas
Dynamics and Hypersonic Flows, Bio-Fluid Dynamics, and Flow and Flight Control.
Among their topics are the main equations and approaches to solutions of the problems in rarefied gas
dynamics, modeling the flow of continuous media, determining the aerodynamical characteristics of the returnable space systems, and the general models describing turbulent flows.
International Symposium on Rarefied Gas
Dynamics (24th: 2004: Monopoli (Bari), Italy) Ed.
Mesoscopic Simulation of Rarefied Gas
Flow in Porous Media