Wake interference behind two flat plates normal to the flow

A finite-element study

M. Behr, Tayfun E. Tezduyar, H. Higuchi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A finite-element model of the Navier-Stokes equations is used for numerical simulation of flow past two normal flat plates arranged side by side at Reynolds number 80 and 160. The results from this simulation indicate that when the gap between the plates is twice the width of a single plate, the individual wakes of the plates behave independently, with the antiphase vortex shedding being dominant. At smaller gap sizes, the in-phase vortex shedding, with strong wake interaction, is favored. The gap flow in those cases becomes biased, with one of the wakes engulfing the other. The direction of the biased flow was found to be switching at irregular intervals, with the time histories of the indicative flow parameters and their power spectra resembling those of a chaotic system.

Original languageEnglish
Pages (from-to)223-250
Number of pages28
JournalTheoretical and Computational Fluid Dynamics
Volume2
Issue number4
DOIs
Publication statusPublished - 1991 Jun
Externally publishedYes

Fingerprint

flat plates
wakes
Vortex shedding
interference
vortex shedding
Chaotic systems
Power spectrum
Navier Stokes equations
Reynolds number
Navier-Stokes equation
power spectra
simulation
Computer simulation
histories
intervals
interactions

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Engineering(all)
  • Fluid Flow and Transfer Processes

Cite this

Wake interference behind two flat plates normal to the flow : A finite-element study. / Behr, M.; Tezduyar, Tayfun E.; Higuchi, H.

In: Theoretical and Computational Fluid Dynamics, Vol. 2, No. 4, 06.1991, p. 223-250.

Research output: Contribution to journalArticle

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