Numerical hydro-acoustic prediction of marine propeller noise |
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| Authors: | Yu-cun Pan Huai-xin Zhang |
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| Institution: | (1) Fluid Machinery Group, East China University of Science and Technology, Mail Box 401, 130 Meilong Rd., Shanghai, 200237, P.R. China;(2) Energy Technology Research Group, School of Engineering Sciences, University of Southhampton, Southhampton, SO17 1BJ, UK |
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| Abstract: | A source-to-far-field computation procedure aiming at predicting the noise generated by the underwater propeller was presented.
Detached eddy simulation (DES) was used to resolve the unsteady flow field, which was taken as input data as noise propagation.
Far-field sound radiation was performed by means of Ffowcs Williams-Hawkings (FW-H) equation. The computation procedure was
finally applied to a typical marine propeller, David Taylor Model Basin (DTMB) 4118. The sound pressure and directivity patterns
of this propeller were discussed. |
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