A granular fluid consists of activated macroscopic particles, like sand grains or powders in agricultural and pharmaceutical industries. In this activated state, the collision between grains are dissipative, i.e., the kinetic energy of the grains is lost to surface deformations and other internal modes of the grains. These systems exhibit fluid like behaviour as illustrated in the oscillon displayed along side. Hence, one expects some hydrodynamic description to be applicable to the flow properties of such granular fluids. The objective of our studies has been to obtain such a description and understand its context and limitaions by starting from microscopic models for inter grain collisions and using the tools of kinetic theory and non equilibrium statistical mechanics to get to a closed hydrodynamic description.

Here is a link to some of our recent papers.

Plasmas are ubiquitous in nature and as illustrated in the picture alongside fall into different regimes. I have been involved in a couple of different projects

1. Stochastic modelling of the electric microfield in the viscinity of a radiator in a non ideal, but classical plasmas.

2. Finding effective classical potentials as models for plasma sytems in the quantum regime.