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TECHNICAL PAPERS

Prediction of Turbulent Flow Over Rough Surfaces Using a Force Field in Large Eddy Simulation

[+] Author and Article Information
Jie Cui, Virendra C. Patel, Ching-Long Lin

IIHR-Hydroscience and Engineering and Department of Mechanical Engineering, The University of Iowa, Iowa City, IA 52242-1585

J. Fluids Eng 125(1), 2-9 (Jan 22, 2003) (8 pages) doi:10.1115/1.1524587 History: Received December 28, 2001; Revised August 06, 2002; Online January 22, 2003
Copyright © 2003 by ASME
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References

Figures

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Decomposition of arbitrary roughness and application of body-force model
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Geometry of channel flow with wavy wall
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Body-fitted computational grid in the wavy channel
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Comparisons of mean streamwise velocity profiles with experimental data at selected locations
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Computational grid for channel flow over wavy roughness with body-force model
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Velocity vectors for channel flow over wavy roughness using body-force model
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Comparisons of mean streamwise velocity profiles using body-force model with experimental data at selected locations
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Wave-averaged mean velocity profile
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Wave-averaged mean turbulence kinetic energy profile
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Wave-averaged mean velocity profiles in wall coordinates
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Wave-averaged mean velocity profiles; effect of subgrid-scale roughness (a) In physical coordinates (Ub* is the bulk velocity in the case with body-force model only). (b) In logarithmic coordinates.

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