NUMERICAL SIMULATION OF SCOURING PROCESS UNDER SPILLWAY  

作　　者：Yang Jian-ming, Wu Jian-hua Nanjing Hydraulic Research Institute, Nanjing 210029, China 

出　　处：《Journal of Hydrodynamics》2001年第4期55-59,共5页水动力学研究与进展B辑（英文版）

摘　　要：The scour problem under spillway has received a lot of attention in the past decades. For such a complicated problem, most numerical modeling presented only dealt with the water flows in equilibrium scour pools without considering the changing topography of the riverbed. In this paper, the dynamic process is handled with moving grids, and the governing equations are solved using finite volume method with colocated variable arrangement on boundary-fitted non-orthogonal grids. The results show that the given method is efficient, with which the variation of flow parameters, such as mean velocity and mean pressure, etc., can be computed correctly.The scour problem under spillway has received a lot of attention in the past decades. For such a complicated problem, most numerical modeling presented only dealt with the water flows in equilibrium scour pools without considering the changing topography of the riverbed. In this paper, the dynamic process is handled with moving grids, and the governing equations are solved using finite volume method with colocated variable arrangement on boundary-fitted non-orthogonal grids. The results show that the given method is efficient, with which the variation of flow parameters, such as mean velocity and mean pressure, etc., can be computed correctly.

关 键 词：scour pool numerical simulation space conservation law moving grids 

分 类 号：TV135.2[水利工程—水力学及河流动力学]