Paper Title:
Numerical Simulation of Oscillating Flows over a Circular Cylinder
  Abstract

Numerical Simulation of oscillating flow over a circular cylinder is calculated when the Reynolds number is 100. The space-time finite element method is used to solving the two-dimensional incompressible Navier-Stokes equations. Considering the oscillating flow over a variation of perturbation amplitudes and frequency ratios, the trends of lift coefficient with amplitude and frequency ratio are compared respectively. Besides, the FFT of the lift coefficient curves are analyzed. There is a suddenly change in main frequency and second frequency when A=0.1. The excited frequencies of lift coefficient are discussed, which could be the combination of vortex shedding natural frequency and perturbation frequency, such as |fe-f0|, fe, 2fe-f0, fe+f0, 2fe+f0, etc.

  Info
Periodical
Edited by
Honghua Tan
Pages
414-419
DOI
10.4028/www.scientific.net/AMM.29-32.414
Citation
T. Li, J. Y. Zhang, W. H. Zhang, "Numerical Simulation of Oscillating Flows over a Circular Cylinder", Applied Mechanics and Materials, Vols. 29-32, pp. 414-419, 2010
Online since
August 2010
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