One-Dimensional Wave Bottom Boundary Layer Model Comparison: Specific Eddy Viscosity and Turbulence Closure Models
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VIEW THE REPLYPublication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 130, Issue 6
Abstract
Six one-dimensional-vertical wave bottom boundary layer models are analyzed based on different methods for estimating the turbulent eddy viscosity: Laminar, linear, parabolic, —one equation turbulence closure, —two equation turbulence closure, and —two equation turbulence closure. Resultant velocity profiles, bed shear stresses, and turbulent kinetic energy are compared to laboratory data of oscillatory flow over smooth and rough beds. Bed shear stress estimates for the smooth bed case were most closely predicted by the model. Normalized errors between model predictions and measurements of velocity profiles over the entire computational domain collected at 15° intervals for one-half a wave cycle show that overall the linear model was most accurate. The least accurate were the laminar and models. Normalized errors between model predictions and turbulence kinetic energy profiles showed that the model was most accurate. Based on these findings, when the smallest overall velocity profile prediction error is required, the processing requirements and error analysis suggest that the linear eddy viscosity model is adequate. However, if accurate estimates of bed shear stress and TKE are required then, of the models tested, the model should be used.
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References
1.
Fredsøe, J., and Deigaard, R. ( 1992). “Mechanics of coastal sediment transport.” Advanced Series on Ocean Engineering, Vol. 3, World Scientific, River Edge, N.J.
2.
Jensen, B. L., Sumer, B. M., and Fredsoe, J. (1989). “Turbulent oscillatory boundary layers at high Reynolds numbers.” J. Fluid Mech., 206, 265–297.
3.
Justesen, P. (1988). “Prediction of turbulent oscillatory flow over rough beds.” Coastal Eng., 12, 257–284.
4.
Justesen, P. (1991). “A note on turbulence calculations in the wave boundary layer.” J. Hydraul. Res., 29, 699–711.
5.
Pope, S.B. ( 2000). Turbulent flows, Cambridge University Press, Cambridge, U.K.
6.
Puleo, J.A., Mouraenko, O., and Hanes, D.M. ( 2003). “Wave bottom boundray layer models for smooth and rough beds.” Rep., NRL/FR/7440—03-10,053, Naval Research Laboratory.
7.
Rodi, W. ( 1980). Turbulence models and their application in hydraulics, IAHR, Delft, The Netherlands.
8.
Spalart, P. (1988). “Direct numerical simulation of a turbulent boundary layer up to .” J. Fluid Mech., 187, 61–98.
9.
Trowbridge, J., and Madsen, O. S. (1984). “Turbulent wave boundary layers 1. Model formulation and first-order solution.” J. Geophys. Res., 89, 7989–7997.
10.
Wilcox, D. C. (1988). “Reassessment of the scale-determining equation for advanced turbulence models.” AIAA J., 31, 1414–1421.
11.
Wilcox, D.C. ( 2000). Turbulence modeling for CFD, DCW Industries, Inc., La Canada, Calif.
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Copyright © 2004 ASCE.
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Published online: Oct 15, 2004
Published in print: Nov 2004
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