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Turbulent-Induced Noise around a Circular Cylinder Using Permeable FW-H Method 被引量:1
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作者 Woen-Sug Choi Suk-Yoon Hong +3 位作者 Jee-Hun Song Hyun-Wung Kwon Chul-Min Jung Tae-Gyoung Kim 《Journal of Applied Mathematics and Physics》 2015年第2期161-165,共5页
Varieties of research on turbulent-induced noise are conducted with combinations of acoustic analogy methods and computational fluid dynamic methods to analyse efficiently and accurately. Application of FW-H acoustic ... Varieties of research on turbulent-induced noise are conducted with combinations of acoustic analogy methods and computational fluid dynamic methods to analyse efficiently and accurately. Application of FW-H acoustic analogy without turbulent noise is the most popular method due to its calculation cost. In this paper, turbulent-induced noise is predicted using RANS turbulence model and permeable FW-H method. For simplicity, noise from 2D cylinder is examined using three different methods: direct method of RANS, FW-H method without turbulent noise and permeable FW-H method which can take into account of turbulent-induced noise. Turbulent noise was well predicted using permeable FW-H method with same computational cost of original FW-H method. Also, ability of permeable FW-H method to predict highly accurate turbulent-induced noise by applying adequate permeable surface is presented. The procedure to predict turbulent- induced noise using permeable FW-H is established and its usability is shown. 展开更多
关键词 turbulent-induced Noise Circular Cylinder Acoustic ANALOGY FW-H METHOD PERMEABLE FW-H METHOD
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