热科学学报（英文版）2003，Vol.12Issue(2)：104-113,10.
Aero-Acoustics of Modern Transonic Fans—Fan Noise Reduction from Its Sources
Aero-Acoustics of Modern Transonic Fans—Fan Noise Reduction from Its Sources
摘要
Abstract
The noise of aerodynamics nature from modern transonic fan is examined from its sources with the perspective of noise reduction through aero-acoustics design using advanced Computational Fluid Dynamics (CFD) tools.In particular the problems associated with the forward propagating noise in the front is addressed. It is identified that the shock wave spillage from the leading edge near the fan tip is the main source of the tone noise. Two different approaches have been studied to reduce the forward arc tone noise and two state-of-art transonic fans are designed using the strategies developed. The following rig tests show that while the fans exhibit other noise problems,the primary goals of noise reduction have been achieved through both fans and the novel noise reduction concept vindicated.关键词
transonic fan/aero-acoustics/noise reductionKey words
transonic fan/aero-acoustics/noise reduction分类
能源科技引用本文复制引用
L. Xu,J.D. Denton..Aero-Acoustics of Modern Transonic Fans—Fan Noise Reduction from Its Sources[J].热科学学报（英文版）,2003,12(2):104-113,10.基金项目
Part of the research presented in this paper is supported by EU BRITE/EURAM project RESOUND(Project 4033)under the management of Dr.B J Tester. （Project 4033）
