1510 高レイノルズ数域における前縁剥離渦構造のビジュアルデータマイニング  [in Japanese] Visual Data Mining for Vortex Structure of Leading-Edge Separation at High Reynolds Numbers  [in Japanese]

Unstructured hybrid grids with 3 turbulence models are applied to simulate experiment about flows around delta wings with a blunt leading edge at Reynolds number of 6 millions. The modified S-A turbulence model is found effective to capture complex vortex structure. The second primary vortex at the inboard of the first primary vortex is captured numerically as reported in the experiment. Its structure is investigated by using CFD visualization.