Large Eddy Simulation of Vortex Shedding due to Forced Vibration of Cylinder

Y. G. Bai (), D. K. Sun and J. H. Lin
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Y. G. Bai: Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics
D. K. Sun: , Monks Brook, Vestas Technology UK
J. H. Lin: Dalian University of Technology, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics

A chapter in Computational Mechanics, 2007, pp 240-240 from Springer

Abstract: Abstract The classical work of Williamson [1] has identified different modes for vortex shedding under forced vibration of circular cylinders. His finding was rich and shows 2P, 2S, P+S, 2P+2S and even coalescence 2S and P+S modes when changing the wavelength and amplitude, actually providing a road map for later computational fluid dynamics practitioners to verify. But after almost twenty years very few has attempted to simulate a few cases to test the validity of the road map. With fluid-structure interaction simulation becoming increasingly important, the work to confirm the roadmap by CFD has been necessary. By a recently developed fully fluid structure interaction coupled solver and an innovative mesh control algorithm [2], the authors carried out systematic resolved large eddy simulation to compare the simulated flows with those on the Williamson roadmap. The finding of the authors shows all the above shedding modes, and surprisingly the coalescence modes too. The work gives the confidence on CFD for vortex induced vibration and can be used as a base for further investigation of fluid structure interaction of more complex geometries.

Keywords: Large Eddy Simulation; Circular Cylinder; Simulated Flow; Classical Work; Fluid Structure Interaction (search for similar items in EconPapers)
Date: 2007
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DOI: 10.1007/978-3-540-75999-7_40

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