Numerical Simulation and Analysis of a Propeller’s Flow Noise

摘要：

The flow noise is a main part of the propellers’ radiated noise. Based on the numerical method of LES(large eddy simulation), the turbulence and vorticity generated by the propeller is simulated. The FW-H(The Ffowcs Williams and Hawkings Acoustic Model)is added for the simulation of the unsteady flow-field and noise-field. The near-field and farfield flow noise of the propeller is analyzed. The results show that the acoustic characters of the flow noise is related closely with the turbulence and the vorticiyt of the flow filed. The power spectral are mainly in the low frequency range.

作者: Chen Shengtao Meng Chunxia Zhang Yufen

作者单位: Key Laboratory for National Defence of Underwater Observing and Control Technology,PO Box 67,Dalian,Liaoning 116013 P.R.China

会议类型: 国际会议

会议名称: The 10th Western Pacific Acoustics Conference(第十届西太平洋声学会议WESPAC X)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-09-21（万方平台首次上网日期，不代表论文的发表时间）