Subhrat Praharaj

Developing the H-AMR code to perform GRMHD simulations with tracers and test particles for theoretical modeling of black hole accretion, jets, and the associated multi-wavelength observations.

To mesh or not to mesh?

When you are asked to simulate the flow of gas in some corner of the universe, the first thing you need is a system of equations that govern the same. But let’s just say you have found yourself a closed, well posed system of equations, what next?  The next choice one has to make is […]

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Tracing floors and non-floor densities in GRMHD simulations: Prospects and Preliminary results

The introduction of density and internal energy floors is seemingly unphysical, but at the same time, a necessary feature of General-Relativistic Magnetohydrodynamic simulations. The open magnetic field lines in the polar regions of our code that thread the black hole Event Horizon become devoid of any matter/energy due to the outflow boundaries at the inner

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