Numerical simulation of Galileo Probe entry flowfield with radiation

Shingo Matsuyama, Yuji Shimogonya, Naofumi Ohnishi, Keisuke Sawada, Akihiro Sasoh

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Radiation coupled calculation of Galileo Probe entry flowfield is carried out by solving the Navier-Stokes equations assuming thermochemical equilibrium. A multi-band model having 570 wavelength points is employed in the radiation calculation. It is found that the radiative and convective heat fluxes obtained in the present calculations agree well with the preflight calculation for the initial time of the entry flight. However, at later time, the radiative heat flux is underestimated while the convective heat flux is overestimated in the present results. This is due to the fact that the present calculation does not take account of shape change due to ablation along the flight trajectory. It is shown that the shock standoff distance at the stagnation point decreases about 4% when radiative cooling effect is accounted for. A newly developed parallel strategy for radiative transfer calculation is found to achieve a higher speedup ratio than that given by the earlier wavelength division strategy.

本文言語English
ホスト出版物のタイトル8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference
出版社American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷版)9781624101182
DOI
出版ステータスPublished - 2002
イベント8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference 2002 - St. Louis, MO, United States
継続期間: 2002 6 242002 6 26

出版物シリーズ

名前8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference

Other

Other8th AIAA/ASME Joint Thermophysics and Heat Transfer Conference 2002
CountryUnited States
CitySt. Louis, MO
Period02/6/2402/6/26

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

フィンガープリント 「Numerical simulation of Galileo Probe entry flowfield with radiation」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル