Research

A list of my publications can be found here.

MOGLI: Model for Multiphase Gas using Multifluid hydrodynamics

There is a requirement of subgrid models for the Multiphase gas for converged large-scale simulations. And in this study we do the same using a multifluid scheme in AREPO. We test and verify our subgrid model MOGLI with resolved benchmark simulations.

Multiphase gas in Magnetised, Turbulent medium

Magnetic fields and turbulence are ubiquitous, with many observational evidences towards there presence in multiple systems. This poses a dilemma for multiphase gas, which is also observed across wide scales, from solar to cluster environemnts. It has been shown that with radiative cooling, turbulence helps mixing of the different phases which can help in the survival of multiphase gas.
But, that is evidence from Radiative Turbulent Mixing Layer (TRMLs) simulations that mixing is suppressed in presence of magnetic fields. This can pose issue for the survival of multiphase gas. A concise summary of this dilemma is shown in meme below 😄. In this project, we attempt to solve this dilemma using a series of (magneto-)hydrodynamic simulations.

This project is part of my PhD thesis at Max Planck Institute of Astrophysics, Garching. The results from this project have been submitted for publication. The preprint version can be found at (2307.06411).

 

The Multiphase gas dilemma

 

Thermal Instability in 1D

Thermal instability (TI) is a process that can lead to multiphasa gas in Astrophysical mediums. In this project, that was part of my Bachelors thesis, we studied the linear and non-linear evolution of TI in 1D.
We looked at the dependence of this evolution on metallicity variation and the temperature, with some very interesting results.

This project lead to a paper which has been published on MNRAS, Volume 502, Issue 4, April 2021. The online version is available here. It is also available on arXiv at 2009.11317.