Modeling Sediment Transport in Rectangular Ducts with a Two-Equation Model of Turbulenceby B. A. Younis, City Univ, United Kingdom,
O. E. Abdellatif, City Univ, United Kingdom,
Abstract: The paper deals with the application of a two-equation model of turbulence to the calculation of flows in rectangular ducts. A non-linear relationship is used to link the Reynolds stresses with the mean rates of strain. This enabled a standard eddy-viscosity model to reproduce the turbulence-driven secondary motions. A preliminary assessment of the bedload transport rates in the presence of these motions is included.
Subject Headings: Mathematical models | Turbulence | Sediment transport | Duct | Turbulent flow | Reynolds stress | Eddy (fluid dynamics) | Motion (dynamics)
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