Comparison of coupled radiative navier-stokes flow solutions with the project fire II flight data

David R. Olynick, W. D. Henline, Lin Hartung Chambers, G. V. Candler

Research output: Contribution to conferencePaperpeer-review

25 Scopus citations

Abstract

A nonequilibrium, axisymmetric, Navier-Stokes flow solver with coupled radiation has been developed to use in the design of thermal protection systems for vehicles where radiation effects are important. The present method has been compared with an existing flow and radiation solver and with the Project Fire II experimental data. Very good agreement has been obtained over the entire Fire II trajectory with the experimentally determined values of the stagnation radiation intensity in the .2 to 6.2 eV range and with the total stagnation heating. The agreement was significantly better than previous numerical predictions. The effects of a number of flow models are examined to determine which combination of physical models produces the best agreement with the experimental data. These models include radiation coupling, multi-temperature thermal models, finite-rate chemistry, and a quasi-steady-state or Boltzmann assumption for the calculation of the excited electronic states. Finally, the computational efficiency of the present model is evaluated. The radiation properties model developed for this study is shown to offer significant computational savings compared to existing codes.

Original languageEnglish (US)
StatePublished - Jan 1 1994
EventAIAA/ASME 6th Joint Thermophysics and Heat Transfer Conference, 1994 - Colorado Springs, United States
Duration: Jun 20 1994Jun 23 1994

Other

OtherAIAA/ASME 6th Joint Thermophysics and Heat Transfer Conference, 1994
CountryUnited States
CityColorado Springs
Period6/20/946/23/94

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