Application of state-of-the-art gas-surface interaction models to hypersonics and plasma discharges

This work describes the application of state-of-the-art gas-surface interaction (GSI) models to hypersonics and plasma discharges. To achieve self-consistency and retain accuracy, the surface mass balance relations accounting for processes such as adsorption and dissociative chemisorption are incorporated into Stefan-Maxwell’s equations stemming from kinetic theory. The GSI models are integrated in hegel and plato, the finite volume solver and library for multi-component gases and plasmas, respectively, developed within the Center for Hypersonics and Entry Systems Studies (CHESS) at University of Illinois at Urbana-Champaign. Application benchmarks are considered to test and verify the implementation.