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http://dx.doi.org/10.3744/SNAK.2003.40.2.021

Numerical Simulation of the Vortical flow around an Oscillating Circular Cylinder  

김광수 (서울대학교 조선해양공학과)
이승재 (서울대학교 조선해양공학과)
서정천 (서울대학교 조선해양공학과/해양시스템공학연구소)
Publication Information
Journal of the Society of Naval Architects of Korea / v.40, no.2, 2003 , pp. 21-27 More about this Journal
Abstract
The phenomena of vortex shedding around a cylinder oscillating harmonically in a fluid at rest are investigated by a two-dimensional numerical simulation of the Navier-Stokes equations. The simulation is based on a vorticity-velocity integro-differential formulation dealing with vorticity, velocity and pressure variables. Three combinations of Reynolds number(Re) and Keulegan-Carpenter number(KC) were taken to investigate the associated vortex development around the cylinder in the different flow regimes. Drag and lift forces are computed to describe their dominant frequency modulation which is related to the vortex shedding and to the harmonic motion of the cylinder.
Keywords
vortex; Reynolds number; Keulegan-Carpenter number; lift force; drag force; Fourier transform;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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