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Turbulent-Induced Noise around a Circular Cylinder Using Permeable FW-H Method

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DOI: 10.4236/jamp.2015.32025    3,149 Downloads   3,656 Views   Citations

ABSTRACT

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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Choi, W. , Hong, S. , Song, J. , Kwon, H. , Jung, C. and Kim, T. (2015) Turbulent-Induced Noise around a Circular Cylinder Using Permeable FW-H Method. Journal of Applied Mathematics and Physics, 3, 161-165. doi: 10.4236/jamp.2015.32025.

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