Computations of high enthalpy shock propagation in electric arc shock tube (EAST) at NASA ames

TL;DR: In this article, the authors assess the current computational capability in simulating time-accurate unsteady nonequilibrium flows in the presence of strong shock waves with state-of-the-art physical models.

TL;DR: In this article, a computational approach is developed to simulate high-enthalpy shock propagation under strong nonequilibrium conditions, such as reentry experiments at NASA's Electric Arc Shock Tube (EAST) facili...

Abstract: An axisymmetric viscous shock tube simulation code is developed that keeps the shock and the contact discontinuity stationary in suitably constructed moving frames of reference. The flowfield aroun...

TL;DR: In this paper, a two-temperatur e chemical-kinet ic model for air is assessed by comparing theoretical results with existing experimental data obtained in shock tubes, ballistic ranges, and flight experiments.

TL;DR: Three schemes are developed that have Mach-proportional dissipation inside the numerical shock wave structure, in contrast to Mach independent dissipation provided by conventional AUSM fluxes, and their desired performances are demonstrated for a wide spectrum of Mach numbers.

TL;DR: In this article, the authors present a self-consistent effective binary diffusion approximation in which the diffusive mass fluxes properly sum to zero and all four types of diffusion are simultaneously accounted for.

TL;DR: In this paper, three properties for flux functions are proposed: shock stability/robustness, conservation of total enthalpy, and resolving boundary layer, and numerical experiments are performed for widely used or recently developed flux functions, and these fluxes are categorized into five major groups based on how they satisfy the three properties.