Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/75276
Title: Numerical simulation on the control of drag force and vortex formation by different wavy (Varicose) cylinders
Authors: Lam, K 
Lin, YF
Keywords: Drag reduction
Large eddy simulation
Turbulent flow
Wavy cylinders
Issue Date: 2008
Publisher: Springer
Source: Solid mechanics and its applications, 2008, v. 7, p. 415-419 How to cite?
Journal: Solid mechanics and its applications 
Abstract: Large eddy simulations of turbulent flow around wavy cylinders are performed at Re = 3000. The mean pressure distribution and mean streamwise velocity in the near-wake region are calculated and compared with those of a circular cylinder. The three-dimensional near-wake structures behind wavy cylinders were captured. It was found that due to the long vortex formation length resulting from the three-dimensional vortex sheet of the wavy cylinder, the mean drag coefficients of the wavy cylinders are less than that of a corresponding circular cylinder. A reduction of mean drag coefficient of up to 16% is obtained. Also, the fluctuating lift coefficients of the wavy cylinders are weakened significantly.
Description: IUTAM Symposium on Flow Control and MEMS, London, 19-22 September 2006
URI: http://hdl.handle.net/10397/75276
ISBN: 9781402068577
ISSN: 18753507
DOI: 10.1007/978-1-4020-6858-4_52
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