Active-domain marching for efficient high speed flow computations

Kazuhiro Nakahashi, Eiji Saitoh, Dmitri Sharov

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A three-dimensional space-marching algorithm on unstructured grid to solve supersonic flows that may contain embedded subsonic regions is proposed. The method employs a domain-marching algorithm in which a computational domain, named active domain, is marched in the hyperbolic direction starting from the upstream boundary of the flow field. A masking procedure is employed to exclude nonactive areas during the flux computations to minimize overall arithmetic operations. The unmasked, active domain is integrated in time to get a locally converged solution. If embedded subsonic regions are present, the active domain is enlarged to cover the whole subsonic regions by supersonic points. The method was applied to compute three-dimensional internal and external flows with and without embedded subsonic region. It is demonstrated that the computational work can be significantly reduced by the present method as compared to conventional, time-marching unstructured grid methods.

本文言語English
ホスト出版物のタイトル14th Applied Aerodynamics Conference
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ページ531-540
ページ数10
ISBN(印刷版)9781563472121
DOI
出版ステータスPublished - 1996
イベント14th Applied Aerodynamics Conference, 1996 - New Orleans, United States
継続期間: 1996 6 171996 6 20

出版物シリーズ

名前14th Applied Aerodynamics Conference

Other

Other14th Applied Aerodynamics Conference, 1996
CountryUnited States
CityNew Orleans
Period96/6/1796/6/20

ASJC Scopus subject areas

  • Engineering(all)

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