Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations

A. M. Feldick; M. F. Modest; D. A. Levin; P. Gnoff; C. O. Johnston

Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations

A. M. Feldick, M. F. Modest, D. A. Levin, P. Gnoff, C. O. Johnston

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Two nonequilibrium hypersonic CFD tools are compared to one another, including tightly-coupled radiation. DPLR and LAURA have different models for the separation of nonequilibrium energy. As a result, results from both codes show significant differences in flowfield temperatures. The flows considered in the present paper are from FIRE II, and from Stardust reentry. Both codes predict convective heat fluxes on the vehicle surfaces within 5% of one another. However, there are significant differences in predicted radiative transport, as well as in the effects of flowfield coupling. The present comparison demonstrates that, for future calculations, free electron temperature needs to be coupled to the vibrational temperature. in DPLR.

Original language	English (US)
Title of host publication	47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
State	Published - 2009
Externally published	Yes
Event	47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States Duration: Jan 5 2009 → Jan 8 2009

Publication series

Name	47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition

Other

Other	47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Country/Territory	United States
City	Orlando, FL
Period	1/5/09 → 1/8/09

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

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Feldick, A. M., Modest, M. F., Levin, D. A., Gnoff, P., & Johnston, C. O. (2009). Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations. In 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition Article 2009-0475 (47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition).

Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations. / Feldick, A. M.; Modest, M. F.; Levin, D. A. et al.
47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. 2009. 2009-0475 (47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Feldick, AM, Modest, MF, Levin, DA, Gnoff, P & Johnston, CO 2009, Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations. in 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition., 2009-0475, 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Orlando, FL, United States, 1/5/09.

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abstract = "Two nonequilibrium hypersonic CFD tools are compared to one another, including tightly-coupled radiation. DPLR and LAURA have different models for the separation of nonequilibrium energy. As a result, results from both codes show significant differences in flowfield temperatures. The flows considered in the present paper are from FIRE II, and from Stardust reentry. Both codes predict convective heat fluxes on the vehicle surfaces within 5% of one another. However, there are significant differences in predicted radiative transport, as well as in the effects of flowfield coupling. The present comparison demonstrates that, for future calculations, free electron temperature needs to be coupled to the vibrational temperature. in DPLR.",

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language = "English (US)",

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AU - Modest, M. F.

AU - Levin, D. A.

AU - Gnoff, P.

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AB - Two nonequilibrium hypersonic CFD tools are compared to one another, including tightly-coupled radiation. DPLR and LAURA have different models for the separation of nonequilibrium energy. As a result, results from both codes show significant differences in flowfield temperatures. The flows considered in the present paper are from FIRE II, and from Stardust reentry. Both codes predict convective heat fluxes on the vehicle surfaces within 5% of one another. However, there are significant differences in predicted radiative transport, as well as in the effects of flowfield coupling. The present comparison demonstrates that, for future calculations, free electron temperature needs to be coupled to the vibrational temperature. in DPLR.

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Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations

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