A method for solving compressible flow equations in an unsteady free stream

被引:2
|
作者
Karabasov, SA [1 ]
Hynes, TP [1 ]
机构
[1] Univ Cambridge, Dept Engn, Whittle Lab, Cambridge CB3 0DY, England
关键词
computational fluid dynamics; computational aeroacoustics; finite-volume methods with constrains; transonic helicopter noise;
D O I
10.1243/09544062C03105
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The paper presents a method to increase the computational accuracy by preserving additional constraints on the numerical solution. The new technique can noticeably increase the precision of a standard finite-volume flow solver by a modification to the flux computation procedure without changing its essential features. The efficiency of this method is demonstrated by application to the prediction of sound from high-speed helicopter blades. Several open domain boundary conditions for this application are also developed and compared for a model problem of a two-dimensional transonic aerofoil in an unsteady free stream.
引用
收藏
页码:185 / 202
页数:18
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