ANALYSIS OF THE FLOW AT A CONFLUENCE BY A DISCRETE VORTEX METHOD

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  • 離散渦法による合流部流れの解析
  • リサン ウズ ホウ ニ ヨル ゴウリュウブ ナガレ ノ カイセキ

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Two-dimensional discrete vortex method is applied to the flow at a confluence. Simulated results for mean and turbulent velocity characteristics together with the size of a recirculating region have a reasonable accuracy compared with open-channel experimental results. Unsteady large scale structure of the flow in the recirculating region including formation and decomposition of vortices is favorably simulated by this method. Generality of model parameters is examined for flows of different hydraulic conditions in a subcritical flow regime.

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