| A Study of Lift Force and Instantaneous Velocity Field Around an Oscillating Circular Cylinder |
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| 作者姓名： | C.A.Greated |
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| 作者单位： | Department of |
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| 摘 要： | -Force measurements of oscillatory flow acting on a single circular cylinder have been carriedout.The experiments were done by oscillating a circular cylinder in still water.Instantaneous forces and ve-locity fields around the cylinder were measured by Particle Image Velocimetry(PIV).The Keulegan-Car-penter number(KC)varied in the range from 5 to 20 and the viscous parameter β=Re/KC was set at500(Re is Reynolds number).It was found that the strength and frequency of the lift force increased withKC number,the main frequency of the lift force being three times the frequency of the oscillatory flow atKC=20.The movement and strength of the vortices around the cylinder are discussed for differentKC numbers.
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A Study of Lift Force and Instantaneous Velocity Field Around an Oscillating Circular Cylinder |
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| C.A.Greated.A Study of Lift Force and Instantaneous Velocity Field Around an Oscillating Circular Cylinder[J].China Ocean Engineering,1997(4). |
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| Authors: | Wang Jianhong Rang Haigui C A Created Ph D Candidate |
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| Institution: | Wang Jianhong Rang Haigui C. A. Created
Ph. D. Candidate,Department of Physics and Astronomy,University of Edinburgh,King's Building Edinburgh EH9 3JZ. U. K.
Professor,Department of Civil Engineering,Dalian University of Technology,Dalian 116024
Professor,Department of Physics and Astronomy,University of Edinburgh,King's Building Edinburgh EH9 3JZ. U. K. |
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| Abstract: | |
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| Keywords: | particle image velocimetry oscillatory flow single circular cylinder force measurement lift force velocity field vortex pattern vorticity |
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