Numerical performance and accuracy of wake interaction noise prediction models

被引：0
|
作者：
Grasso, G. [1 ]
Christophe, J. [1 ]
Schram, C. [1 ]
机构：
[1] von Karman Inst Fluid Dynam, Environm & Appl Fluid Dynam Dept, B-1640 Rhode St Genese, Belgium
来源：
PROCEEDINGS OF INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING (ISMA2014) AND INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS (USD2014) | 2014年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The numerical performance and accuracy of different features of a wake interaction noise prediction model have been investigated by analysing the results obtained on the geometry of an existing contra-rotating fan. The source and propagation effects have been considered separately. First, the effect of modelling the source either with a parallel or with a skew gust formulation, based on Amiet's theory, has been investigated. The choice of the response function and its computation have been discussed. Then, the propagation formula has been modified to take into account the effect of the geometry of the blades on the retarded time of the emission.
引用
收藏
页码：1297 / 1310
页数：14
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