• 제목/요약/키워드: 혼합 내외적 갤러킨 방법

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고속 흐름에서의 충격파와 난류경계층의 상호작용에 관한 수치적 연구 (A Numerical Study on Shock Wave Turbulent Boundary Layer Interactions in High-Speed Flows)

  • 문수연;손창현;이충원
    • 대한기계학회논문집B
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    • 제25권3호
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    • pp.322-329
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    • 2001
  • A study of the shock wave turbulent boundary layer interaction is presented. The focus of the study is the interactions of the shock waves with the turbulent boundary layer on the falt plate. Three examples are investigated. The computations are performed, using mixed explicit-implicit generalized Galerkin finite element method. The linear equations at each time step are solved by a preconditioned GMRES algorithm. Numerical results indicate that the implicit scheme converges to the asymptotic steady state much faster than the explicit counterpart. The computed surface pressures and skin friction coefficients display good agreement with experimental data. The flowfield manifests a complex shock wave system and a pair of counter-rotating vortices.