• 제목/요약/키워드: 초음속 보텍스 유동

검색결과 2건 처리시간 0.019초

비정렬 격자계에서 격자계 구성방법에 따른 계산의 정확도와 효율에 관한 연구 (On the Accuracy and Efficiency of Calculation with Respect to the Grid Construction Methods for Unstructured Meshes)

  • 김사량
    • 한국전산유체공학회지
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    • 제9권1호
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    • pp.48-56
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    • 2004
  • The numerical simulations with unstructured mesh by cell-centered and vertex-centered approaches were peformed for the quadrilateral and triangular meshes. For 2-D inviscid supersonic vortex flow, the simulation results and the analytic solution were compared and the accuracy was assessed. The calculation efficiency was measured by the parameter defined by the consumed CPU time multiplied by absolute error As a results, equilateral triangular mesh yielded the best accuracy and efficiency among the tested meshes. Cell-centered approach gives a little better efficiency than vertex - centered approach.

비정렬 격자계에서 셀 중심 및 버텍스 중심 계산방법에 따른 계산의 정확도와 효율에 관한 연구 (On the Accuracy and Efficiency of Cell-centered and Vertex-centered Approaches for Unstructured Meshes)

  • 김사량
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2003년도 추계 학술대회논문집
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    • pp.25-30
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    • 2003
  • The numerical simulations with unstructured mesh by cell-centered and vertex-centered approaches were performed for the quadrilateral and triangular meshes. For the 2-D incompressible supersonic vortex flow, the simulation results and the analytic solution were compared and the accuracy was assessed. The calculation efficiency was measured by the parameter defined by the consumed CPU time multiplied by absolute error, As a results, equilateral triangular mesh yielded the best accuracy and efficiency among the tested meshes.

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