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TECHNICAL PAPERS

A Comparison of Second-Moment Closure Models in the Prediction of Vortex Shedding From a Square Cylinder Near a Wall

[+] Author and Article Information
Anthony G. Straatman, Robert J. Martinuzzi

The Advanced Fluid Mechanics Research Group, Department of Mechanical & Materials Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada

J. Fluids Eng 124(3), 728-736 (Aug 19, 2002) (9 pages) doi:10.1115/1.1490127 History: Received November 02, 2001; Revised April 03, 2002; Online August 19, 2002
Copyright © 2002 by ASME
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Figures

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Schematic representation of the square cylinder geometry showing the coordinate system and all important parameters
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Plot showing the temporal variation of pressure for on point on the upper face of the cylinder for S/D=1 computed using DH,RTI+IP. The figure on the right shows the result of the FFT conducted on the temporal pressure signal.
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Plot comparing the temporal variation of lift, 〈CL〉, for (a) S/D=1 and (b) S/D=0.5 predicted using the LUM+SSG model combination and compared to the measured results of Wu and Martinuzzi 9
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Plot comparing the temporal variation of drag, 〈CD〉, for (a) S/D=1 and (b) S/D=0.5 predicted using the LUM+RTI model combination and compared to the measured results of Wu and Martinuzzi 9
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Plots comparing the predicted time-averaged pressure variation around the cylinder (a) and along the lower wall (b) with the experimental results of Wu and Martinuzzi 9
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Profiles of the mean velocities and the u1u1,u2u2 and u1u2 Reynolds-stresses, all normalized by the inlet velocity Uo, for the case of S/D=1.0. Included for comparison are the experimental results of Wu and Martinuzzi 9. All data are for the axial positions indicated in the u1u2 plot.
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Profiles of the mean velocities and the u1u1,u2u2 and u1u2 Reynolds-stresses, all normalized by the inlet velocity Uo, for the case of S/D=0.5. Included for comparison are the experimental results of Wu and Martinuzzi 9. Legend and axial positions same as in Fig. 6.
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Profiles of the mean velocities and the u1u1,u2u2 and u1u2 Reynolds-stresses, all normalized by the inlet velocity Uo, for the case of S/D=0.25. Included for comparison are the experimental results of Wu and Martinuzzi 9. Legend and axial positions same as in Fig. 6.

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