Computation of trailing-edge noise due to turbulent flow over an airfoil

被引：116
作者：
Oberai, AA [1 ]
Roknaldin, F [1 ]
Hughes, TJR [1 ]
机构：
[1] Stanford Univ, Div Mech & Computat, Stanford, CA 94305 USA
来源：
AIAA JOURNAL | 2002年 / 40卷 / 11期
关键词：
D O I：
10.2514/2.1582
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Application of the variational formulation of Lighthill's acoustic analogy to trailing-edge noise is considered. Use is made of this formulation to study the effect of finiteness of the chord and the variation of far-field pressure directivity with frequency. Numerical analytical solution results are validated for certain limiting cases. Use is also made of this methodology to calculate the far-field acoustic pressure for a low-Mach-number turbulent flow. To determine the acoustic sources for this problem, we employ an unstructured mesh, large eddy simulation of the incompressible Navier-Stokes equations.
引用
收藏
页码：2206 / 2216
页数：11
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