TY - GEN
T1 - Examination of coupled continuum fluid dynamics and radiation in hypersonic simulations
AU - Feldick, A. M.
AU - Modest, M. F.
AU - Levin, D. A.
AU - Gnoff, P.
AU - Johnston, C. O.
PY - 2009
Y1 - 2009
N2 - 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.
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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M3 - Conference contribution
AN - SCOPUS:78549252407
SN - 9781563479694
T3 - 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
BT - 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
T2 - 47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
Y2 - 5 January 2009 through 8 January 2009
ER -