1008 定常外力に駆動される一様乱流中の秩序構造(OS10 渦流れのダイナミクス,オーガナイズドセッション)

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  • 1008 Coherent structures in homogeneous turbulence sustained by steady force

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Direct numerical simulations of turbulence sustained by steady force in a peridic cube are conducted.It is then shown that the hierarchy of vortex tubes are created by vortex stretching in large-scale straining fields around the quadruplet of vortex tubes sustained by the force directly,and that this energy-cascading process is quesi-peridoc in time.

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