Computation of Non-Equilibrium Chemically Reacting Hypersonic Flow from a Cartesian Mesh with Near Wall Viscous Resolution

Authors

1 Aerodynamics and Aerothermal Group, Vikram Sarabhai Space Centre, ISRO, Thiruvananthapuram-695022, India

2 Indian Institute of Space Science and Technology, Department of Space, Thiruvananthapuram-695022, India

Abstract

A hybrid solution methodology has been developed to solve chemically reacting laminar hypersonic flow in chemical Non-equilibrium and thermal equilibrium, by a Cartesian mesh based hybrid solution methodology, which uses an unstructured prism layer solution near the wall and a Cartesian mesh solution away from the wall. The unstructured prism layer for near wall solution is obtained from the normal projection of wall panels of the Cartesian mesh and are stitched with the outer Cartesian mesh. The solver, developed based on this approach when compared with other chemically reacting CFD codes and limited experimental results show good comparison. This procedure has a good potential to handle near-wall resolution for chemically reacting flows with a Cartesian mesh for complex geometries as well.

Keywords

Journal of Applied Fluid Mechanics
Volume 7, Issue 2
April 2014
Pages 217-226

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