Study of emission turbulence-radiation interaction in hypersonic boundary layers

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

doi:10.2514/1.J050508

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	340-348
Number of pages	9
Journal	AIAA journal
Volume	49
Issue number	2
DOIs	https://doi.org/10.2514/1.J050508
State	Published - Feb 2011
Externally published	Yes

ASJC Scopus subject areas

Aerospace Engineering

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10.2514/1.J050508

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title = "Study of emission turbulence-radiation interaction in hypersonic boundary layers",

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.",

author = "L. Duan and Mart{\'i}n, {M. P.} and I. Sohn and Levin, {D. A.} and Modest, {M. F.}",

note = "Funding Information: This work is sponsored by NASA Constellation University Institutes Project grant NCC3-989. We thank Peter Gnoffo for insightful discussions and the Space Technology Division in NASA Ames Research Center for providing Reynolds-averaged Navier– Stokes solutions under flow conditions representative of Crew Exploration Vehicles.",

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language = "English (US)",

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AU - Duan, L.

AU - Martín, M. P.

AU - Sohn, I.

AU - Levin, D. A.

AU - Modest, M. F.

N1 - Funding Information: This work is sponsored by NASA Constellation University Institutes Project grant NCC3-989. We thank Peter Gnoffo for insightful discussions and the Space Technology Division in NASA Ames Research Center for providing Reynolds-averaged Navier– Stokes solutions under flow conditions representative of Crew Exploration Vehicles.

PY - 2011/2

Y1 - 2011/2

N2 - 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.

AB - 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.

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Study of emission turbulence-radiation interaction in hypersonic boundary layers

Abstract

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