Study of emission turbulence-radiation interaction in hypersonic boundary layers

L. Duan, M. P. Martín, I. Sohn, D. A. Levin, M. F. Modest

Research output: Contribution to journalArticle

Abstract

Direct numerical simulations are conducted to study the effects of emission turbulence-radiation interaction in hypersonic turbulent boundary layers, representative of the Orion Crew Exploration Vehicle at peak-heating condition during reentry. A nondimensional governing parameter to measure the significance of emission turbulence-radiation interaction is proposed, and the direct numerical simulation fields with and without emission coupling are used to assess emission turbulence-radiation interaction. Both the uncoupled and coupled results show that there is no sizable interaction between turbulence and emission at the hypersonic environment under investigation. An explanation of why the intensity of emission turbulence-radiation interaction in the hypersonic boundary layer is smaller than that in many combustion flows is provided.

Original languageEnglish (US)
Pages (from-to)340-348
Number of pages9
JournalAIAA journal
Volume49
Issue number2
DOIs
StatePublished - Feb 1 2011
Externally publishedYes

ASJC Scopus subject areas

  • Aerospace Engineering

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