Abstract
A 3-D free surface flow in open channels based on the Reynolds equations with thek-ε turbulence closure model is presented in this paper. Insted of the “rigid lid” approximation, the solution of the free surface equation is implemented in the velocity—pressure iterative procedure on the basis of the conventional SIMPLE method. This model was used to compute the flow in rectangular channels with trenches dredged across the bottom. The velocity, eddy viscosity coefficient, turbulent shear stress, turbulent kinetic energy and elevation of the free surface can be obtained. The computed results are in good agreement with previous experimental data.
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Koutitas, M., and O'connor B., Turbulence model for flow over dredged channels,J. of Hydraulics Div., ASCE, 107, HY8 (1981)989–1002.
Alfrink, B. J., and Rijn, L. C. van, Two—equation turbulence model for flow in trenches,J.of the Hydraulics Div., ASCE, 105, HY5 (1979), 461–476.
Li Wei, Liu Zhongchao, and Chen HechunJ. of Hydraulic Engineering.2 (1988), 18–26 (in Chinese).
Benque, J. P., et al., Tidal Flow Engineering Applications of Computational Hydraulics, Pitman Publishing Inc. Part 1, 2 (1982).
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Guoqi, H., Deguan, W. & Xieqing, X. Numerical simulation of 3-D turbulent flows over dredged trenches. Acta Mech Sinica 5, 313–322 (1989). https://doi.org/10.1007/BF02488004
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DOI: https://doi.org/10.1007/BF02488004