High Enthalpy Effects on Hypersonic Boundary-Layer Transition: T5 Experimental and Numerical Comparison

A. Hameed, J. H. Chen, N. J. Parziale, J. Kuehl, T. Liang, K. Graziose, Christoph Brehm, Sean David Dungan, Jean Philippe Brazier, L. Paquin, S. J. Laurence

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, a numerical and experimental comparison is presented of a slightly blunted, 5° half-angle cone at high-enthalpy flow conditions. Experimental studies were conducted at California Institute of Technology’s T5 free piston reflected shock tunnel. Numerical stability investigations were conducted with STABL, MAMOUT of ONERA, JoKHeR of the University of Delaware, and CHAMPS of the University of Maryland. The comparison focuses on second-mode instability physics at high-enthalpy. The NLDE based solver was most accurate at identifying the most amplified frequency, however, significant uncertainty was observed in both N factor maximum amplitude and most amplified frequency amongst the various stability solvers. A comparison of solver results between experiments performed with an isothermal wall and an actively-cooled wall shows various degrees of success in portraying sensitivity to wall temperature.

Original languageEnglish
Title of host publicationAIAA SciTech Forum and Exposition, 2024
DOIs
StatePublished - 2024
EventAIAA SciTech Forum and Exposition, 2024 - Orlando, United States
Duration: 8 Jan 202412 Jan 2024

Publication series

NameAIAA SciTech Forum and Exposition, 2024

Conference

ConferenceAIAA SciTech Forum and Exposition, 2024
Country/TerritoryUnited States
CityOrlando
Period8/01/2412/01/24

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