TY - JOUR
T1 - Wake interference behind two flat plates normal to the flow
T2 - A finite-element study
AU - Behr, M.
AU - Tezduyar, T. E.
AU - Higuchi, H.
PY - 1991/6
Y1 - 1991/6
N2 - 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.
AB - 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.
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U2 - 10.1007/BF00271639
DO - 10.1007/BF00271639
M3 - Article
AN - SCOPUS:0042855868
SN - 0935-4964
VL - 2
SP - 223
EP - 250
JO - Theoretical and Computational Fluid Dynamics
JF - Theoretical and Computational Fluid Dynamics
IS - 4
ER -