Influence of cavity shape on hydrodynamic noise by a hybrid LES-FW-H method |
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Authors: | Yu Wang Shu-xin Wang Yu-hong Liu Chao-ying Chen |
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Institution: | WANG Yu,WANG Shu-xin,LIU Yu-hong 1 and CHEN Chao-ying School of Mechanical Engineering,Tianjin University,Tianjin 300072,China |
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Abstract: | The flow past various mechanical cavity, which is a common structure on the surface of the underwater vehicle, and generating hydrodynamic noise has attracted considerable attention in recent years. In this paper, a hybrid method is presented to investigate the hydrodynamic noise induced by mechanical cavities with various shapes. With this method, the noise sources in the near wall turbulences or in the wake are computed by the large eddy simulation (LES) and the generation and propagation of the acoustic ... |
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Keywords: | cavity shape hydrodynamic noise large eddy simulation FW-H acoustic analogy |
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