CFD calculation of heat fluxes in turbulent flow for pioneer-venus probes

Hyo Keun Ahn, Keisuke Sawada, Chul Park

Research output: Contribution to conferencePaperpeer-review

7 Citations (Scopus)

Abstract

The distribution of the turbulent convective heat transfer rate on the surface of the ablating heatshield of the Pioneer-Venus Day Probe is calculated using CFD. The Venusian atmosphere is assumed to consist of CO2, and the shock layer is assumed to be in chemical nonequilibrium. Eleven chemical species are accounted for. The turbulence energy is calculated using a one-equation model accounting for the finiteness of turbulence energy at wall according the theory of Park. The result shows that the convective heating rate decreases due to the injection at the stagnation point but increases greatly in the downstream region. This is in agreement with the Pioneer-Venus flight data.

Original languageEnglish
Publication statusPublished - 1998
Event36th AIAA Aerospace Sciences Meeting and Exhibit, 1998 - Reno, United States
Duration: 1998 Jan 121998 Jan 15

Other

Other36th AIAA Aerospace Sciences Meeting and Exhibit, 1998
CountryUnited States
CityReno
Period98/1/1298/1/15

ASJC Scopus subject areas

  • Engineering(all)
  • Space and Planetary Science

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