THE ACOUSTIC RING SOURCE AND ITS APPLICATION TO PROPELLER ACOUSTICS

被引：10
作者：
PRENTICE, PR
机构：
[1] Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge CB3 9EW, Silver Street
来源：
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1992年 / 437卷 / 1901期
关键词：
D O I：
10.1098/rspa.1992.0083
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The field produced by a circular ring source, corresponding to the noise generated by a fixed radial station of a rotating propeller, is considered. Asymptotic analysis for large blade number is used to give different solutions for the various regions in this field, and for different source radii. The transitions between regions are carefully studied. The asymptotic solutions are compared with the numerically evaluated solution. Finally. these formulae are used to find the near field thickness noise of a supersonically rotating propeller in the quiet zone.
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页码：629 / 644
页数：16
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