Computational and experimental analysis of the scattering by rotating fans

被引:17
|
作者
Tardy, I
Piau, GP
Chabrat, P
Rouch, J
机构
[1] AEROSPATIALE,JOINT RES CTR,F-92152 SURESNES,FRANCE
[2] UNIV BORDEAUX 1,CTR PHYS MOL OPT & HERTZIENNE,URA CNRS 283,F-33405 TALENCE,FRANCE
关键词
D O I
10.1109/8.537337
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The electromagnetic scattering of rotating blades is investigated both theoretically and experimentally. We have developed an analytical method based on physical optics (PO) and the method of equivalent currents (MEC), in conjunction with the quasi-stationary method. We have predicted the bistatic field scattered by a multiple skew-plated rotating fan, Comparisons with a numerical calculation based on the method of moments and with measurements have given very satisfactory results. A comparison with previously published results has also been carried out. Physical interpretations are given both in time and frequency domains. Our analytical model correctly predicts the spreading and magnitude of the frequency response as a function of the scatterer's skew angles, its rotation frequency, and the directions of incidence and scattering.
引用
收藏
页码:1414 / 1421
页数:8
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