旋转偶极点源辐射声场的精确频域解。

An exact frequency-domain solution of the sound radiated from the rotating dipole point source.

机构信息

School of Energy and Power Engineering, Xi'an Jiaotong University, 710049 Xi'an, Shaanxi, People's Republic of China.

出版信息

J Acoust Soc Am. 2012 Sep;132(3):1294-302. doi: 10.1121/1.4742972.

Abstract

An exact solution of the acoustic field around the rotating dipole source has been derived by using a series expansion method and the gradient calculation in the spherical and cylindrical coordinate systems which extends a previously published solution for a rotating monopole source. The proposed exact solution establishes an analytical method to predict the sound radiated from the rotating blades once the acoustic sources have been known.

摘要

通过使用级数展开方法和球坐标系和圆柱坐标系中的梯度计算，推导出了旋转偶极子声源周围声场的精确解，该方法扩展了以前发表的旋转单极子声源的解。所提出的精确解为预测旋转叶片辐射的声音提供了一种分析方法，只要已知声源即可。