Large-Eddy Simulation of High Reynolds Number Turbulent Flow Past a Square Cylinder
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VIEW CORRECTIONPublication: Journal of Engineering Mechanics
Volume 132, Issue 3
Abstract
Flow past a square cylinder at a Reynolds number of 21,400 has been studied numerically using the large-eddy simulation technique. A dynamic subgrid-scale stress model has been used for the small scales of turbulence. The time- and span-averaged axial and transverse velocities in the downstream of the cylinder are in good agreement with the experimental results. The distribution of turbulent normal and shear stresses is also well predicted. The coherent and incoherent components of turbulent fluctuations at some specified phases have been separated and their relative magnitudes downstream of the cylinder have been compared. The comparison shows more coherence in the near wake than the far wake, while the coherent and incoherent components are of comparable magnitude in the far wake. The far wake shows irregular phase-averaged structures.
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Acknowledgments
The research was supported by the ARDB Grant No. UNSPECIFIEDRD/134/100/10/2000-01/1032. The authors are grateful to Professor Y. V. C. Rao for useful discussions.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 132 • Issue 3 • March 2006
Pages: 327 - 335
Copyright
© ASCE.
History
Received: Oct 1, 2004
Accepted: Aug 5, 2005
Published online: Mar 1, 2006
Published in print: Mar 2006
Notes
Note. Associate Editor: Robert J. Martinuzzi
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