3D Simulation and Visualization of Unsteady Wake Flow behind a Cylinder

Y. Osawa, T. Tezduyar

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this paper we focus on 3D simulation of unsteady wake flow behind a circular cylinder. We show that in addition to accurate formulations and sufficiently-refined meshes, efficient computing methods are essential components of an effective simulation strategy. We use the Multi-Domain Method (MDM) we developed recently in computation of two cases. At Reynolds number 300, we demonstrate how the MDM enables us to use highly-refined meshes to capture wake patterns which we otherwise cannot fully represent. At Reynolds number 140, we show that with the MDM we can extend our computations sufficiently downstream, and with sufficient accuracy, to successfully capture the second phase of the Karman vortex street, which has been observed in laboratory experiments, and which has double the spacing between the vortices compared to the first phase.

Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalJournal of Visualization
Volume2
Issue number2
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Multi-domain method
  • Unsteady wake flow
  • Vortex shedding

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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