Rotor -Stator Interaction Broadband Noise

摘要：

A three-dimensional model is presented for fan broadband interaction noise based on the spectral representation of the impinging upstream turbulence and a multiple scale analysis for the evolution of turbulence in a nonuniform swirling flow. The analysis is based on the fact that, for typical fans, the turbulence scale is much smaller than the vane chord or duct radius. The fan is modeled as a threedimensional annular cascade in a nonuniform swirling flow and its acoustic response to every upstream Fourier component is calculated using the linearized Euler equations. The broadband noise power is then calculated by summing the spectral density weighted contributions of all Fourier components.

关键词： broadband noise rotor-stator interaction

作者: gor Vinogadov Huang Xun

作者单位: Research Associate, College of Engineering, Peking University, Beijing 100871, China Assistent Professor, College of Engineering, Peking University, Beijing 100871,China

会议类型: 国际会议

会议名称: 2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)

会议地点: 西安

会议语种:英文

页码: 253-254

在线出版日期: 2010-09-01（万方平台首次上网日期，不代表论文的发表时间）