J011021 多段軸流圧縮機における旋回失速初生現象の大規模数値解析([J011-02]次世代スパコン「京」が拓くシミュレーションの新時代(2))

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タイトル別名
  • J011021 Large-Scale Numerical Analysis of Rotating Stall Inception in a Multistage Axial Compressor

抄録

Large-scale detached eddy simulations (DES) have been conducted on the K computer, in order to elucidate the flow mechanism of the rotating stall inception in a multi-stage axial compressor for an actual gas turbine. The detached eddy simulation approach is based on k-ω two-equation turbulence model. The present DES program parallelized with MPI has high speed-up performance. To investigate complex vortical flow phenomena at near-stall conditions, vortex structures are identified by the critical point theory, and limiting streamlines are visualized by a line integral convolution (LIC).

収録刊行物

  • 年次大会

    年次大会 2013 (0), _J011021-1-_J011021-5, 2013

    一般社団法人 日本機械学会

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