• Title/Summary/Keyword: 비점성 유동장과 경계층 방정식의 결합 방법

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Boundary Layer Analysis in a Hypersonic Flow Field (극초음속 유동장의 경계층 해석)

  • Sohn Chang-Hyun;Choi Seung;Moon Su-Yuon;Kim Jae-Yung;Lee Yul-Hwa
    • Journal of the Korea Institute of Military Science and Technology
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    • v.7 no.3 s.18
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    • pp.165-173
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    • 2004
  • Matching inviscid and boundary layer methods are developed for analysis of hypersonic flow with thick boundary layer. The new equations match all the boundary layer properties with a variation in the inviscid solution near the edge, except for the normal velocity. Computational comparison are peformed for incompressible and compressible flows over a flat plate. Results from the present method are compared with Wavier-Stokes solutions. The present results are in good agreement with Wavier-Stokes solutions. They show that the new technique can provide improved predictions of heating rates and skin friction predictions for preliminary design of vehicles where shear layers and entropy layer swallowing are importantfor for preliminary design.