A Method to Enhance the Circulation of a Enclosed Bay by Strengthening Tidal Vortices Occured at a Bay Mouth.

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  • 湾口渦強化による閉鎖性海域の循環流の増大方法に関する研究
  • ワンコウ ウズ キョウカ ニヨル ヘイサセイ カイイキ ノ ジュンカンリュウ

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Abstract

A new method to enhance the circulation of a enclosed bay by using small pillars set at the bay mouth is proposed. The method controls the strength of vortices that are generated at the bay mouth. Setting triangle shape of pillars by the side of the bay mouth, the vortices can be strengthen. Consequently, the circulation inside the bay grows large because the strengthened vortices move towards the head of the bay. In this study, the property of this method were investigated by surface flow data which were obtained by PTV analysis. A numerical simulation shows good agreement with the measurement data. The mechanism to generate vortices by pillars is also discussed with the result of the numerical simulation.

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