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Ahilan Appar

Postdoctoral Scholar


I am a Postdoctoral Researcher in Aerospace Engineering at the University of Kentucky, focusing on hypersonic and rarefied gas dynamics. My research integrates molecular dynamics (MD) and direct simulation Monte Carlo (DSMC) to develop multiscale models for high-speed flows, particularly for hypersonic vehicles and spacecraft at very low Earth orbit (VLEO) conditions.

Previously, I explored gas-surface interactions and material response modeling, developing computational frameworks to analyze aerothermodynamics in reentry vehicles. Developing flow-thermal stability criteria for ablation problems and transpiring boundaries in hypersonics.

My research interests extend to multiphysics modeling, reentry aerothermodynamics, and rarefied flows.

Ph.D., Aerospace Engineering: Indian Institute of Technology Kanpur (2017–2023).
M.Tech., Aerospace Engineering: Indian Institute of Technology Kanpur (2015–2017).
B.E., Aeronautical Engineering: Madras Institute of Technology, Chennai (2010–2014).