Numerical hydro-acoustic prediction of marine propeller noise
Numerical hydro-acoustic prediction of marine propeller noise
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DOI：
10.1007/s12204-010-1073-4
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发表时间：
2010-11
影响因子：
--
通讯作者：
Yu-cun Pan;Huaixin Zhang
中科院分区：
文献类型：
--
作者：
Yu-cun Pan;Huaixin Zhang
提出了一种用于预测水下螺旋桨噪声的源-远场计算方法。非定常流场作为噪声传播的输入数据，采用分离涡模拟方法(DES)进行求解。远场声辐射采用Ffowcs Williams-Hawking(FW-H)方程。最后，将该计算方法应用于一种典型的船用螺旋桨--大卫·泰勒模型流域(DTMB)4118。讨论了该螺旋桨的声压和指向性。
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.