0
RESEARCH PAPERS

Interaction of a Steady Approach Flow and a Circular Cylinder Undergoing Forced Oscillation

[+] Author and Article Information
Jianfeng Zhang

Department of Mechanical Engineering, University of Houston, Houston, TX 77204-4814

Charles Dalton

University of Houston, Houston, TX 77204-4814

J. Fluids Eng 119(4), 808-813 (Dec 01, 1997) (6 pages) doi:10.1115/1.2819502 History: Received December 06, 1994; Revised July 08, 1997; Online January 22, 2008

Abstract

This paper presents a numerical study on the interaction of a steady approach flow and the forced transverse oscillation of a circular cylinder. The two-dimensional stream-function/vorticity formulation of the Navier-Stokes equations is solved by a semi-implicit finite-difference scheme. Calculations for flows with different amplitude (a) and frequency (fc ) of the oscillation of the cylinder show a strong effect of the oscillation when fc is close to fso , the vortex shedding frequency, of the stationary cylinder. Lock-on of vortex shedding, distinct flow patterns, and increase in both drag and lift coefficients from those of a stationary cylinder are observed for Reynolds number Re = 200, a/R (R is the radius of the cylinder) from 1.0 to 2.0, fc /fso from 0.85 to 1.7. For Re = 855, a/R = 0.26, a large eddy simulation model for turbulent flow is used. The results at Re = 855 and a/R = 0.26 show that lock-on has occurred for fc /fso ≥ 0.85. The behavior of the drag and lift coefficients is seen to be influenced by the lock-on phenomenon.

Copyright © 1997 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In