Code-Verification Techniques for Hypersonic Reacting Flows in Thermochemical Nonequilibrium

TL;DR

This paper introduces specialized code-verification techniques for hypersonic reacting flows in thermochemical nonequilibrium, ensuring the accuracy and credibility of computational simulations used in aerospace vehicle design.

Contribution

The paper presents novel verification methods tailored for hypersonic reacting flow codes, focusing on spatial accuracy and thermochemical source term validation.

Findings

Verification techniques effectively assess code accuracy.

Techniques demonstrated on the SPARC code.

Improves confidence in hypersonic flow simulations.

Abstract

The study of hypersonic flows and their underlying aerothermochemical reactions is particularly important in the design and analysis of vehicles exiting and reentering Earth's atmosphere. Computational physics codes can be employed to simulate these phenomena; however, verification of these codes is necessary to certify their credibility. To date, few approaches have been presented for verifying codes that simulate hypersonic flows, especially flows reacting in thermochemical nonequilibrium. In this paper, we present our code-verification techniques for verifying the spatial accuracy and thermochemical source term in hypersonic reacting flows in thermochemical nonequilibrium. We demonstrate the effectiveness of these techniques on the Sandia Parallel Aerodynamics and Reentry Code (SPARC).