A numerical study on the rectilinear oscillations of a circular cylinder

Serpil Kocabiyik, Qasem Al-Mdallal

Research output: Chapter in Book/Report/Conference proceedingChapter


The flow structure and loading due to rectilinear oscillations of a circular cylinder in a steady uniform flow are investigated numerically at a fixed Reynolds number R = 855. Numerical results are obtained over broad ranges of two externally specified parameters, i.e. the frequency of forced oscillation f relative to the natural vortex-shedding frequency f 0 (0.5 ≤ f / f 0 ≤ 4.0) and the angle of inclination η between oscillation axis and free-stream (η = 30°, 45°, 60°, 75°). The dimensionless oscillation amplitude is fixed at A = 0.26. The method of solution is based on the use of truncated Fourier series representations for the stream function and vorticity in the angular polar coordinate. The N avierStokes equations are solved by using finite difference methods, but with the boundary vorticity calculated using integral conditions rather than local finite-difference approximations.

Original languageEnglish
Title of host publicationIUTAM Symposium on Integrated Modeling of Fully Coupled Fluid Structure Interactions Using Analysis, Computations and Experiments
Number of pages11
Publication statusPublished - 2004
Externally publishedYes

Publication series

NameFluid Mechanics and its Applications
ISSN (Print)0926-5112


  • Cylinder
  • Incompressible
  • Rectilinear oscillations
  • Unsteady
  • Viscous

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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