NUMERICAL SIMULATION OF 3-D TURBULENT FLOWS OVER DREDGED TRENCHES

作     者：Han Guoqi Wang Deguan Xu Xieqing Department of Environmental Engineering, Hohai University, Nanjing 

作者机构：Department of Environmental Engineering Hohai University Nanjing 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：1989年第5卷第4期

页      面：313-322页

核心收录：

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：3- D surface water flow model dredged trenches k -ε turbulence model numerical simulation. 

摘      要：A 3- D free surface flow in open channels based on the Reynolds equations with the k-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.