UNSTEADY-FLOW NEAR A MOVING CYLINDER

被引：1
|
作者：
DOWLING, AP
机构：
[1] Cambridge University Engineering Department, Cambridge, CB2 1PZ, Trumpington Street
来源：
JOURNAL OF FLUID MECHANICS | 1994年 / 278卷
关键词：
D O I：
10.1017/S0022112094003757
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
General representations are derived for both the velocity potential and the surface pressure fluctuations induced by an arbitrary distribution of vorticity near a manoeuvring cylinder. The cylinder is inextensible and in unsteady motion. Its axis may be slightly curved, with radius of curvature large in comparison with the cylinder radius. Two model problems are considered in detail to investigate the effect of lateral displacements of a cylinder with an established boundary layer. The boundary layer on the flexible cylinder is found to be shed once the lateral displacement of the cylinder axis exceeds the boundary-layer thickness. The unsteady pressures generated by this vortex shedding are investigated.
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页码：363 / 390
页数：28
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