节点文献
振荡流底层悬沙运动的数值研究
Numerical simulation of sediment in oscillatory flow over plane bed
【摘要】 建立了平底振荡流底层立面二维水沙数值模型,利用Smagrionsky(SGS)格子涡模型封闭二维Navier Storkes方程水流运动方程组,控制方程采用SMAC法求解。该模型能较精确地模拟振荡流底层水流流动特性,以及含沙量沿垂线分布和随相位变化的情况,且与水槽实验的实测资料基本吻合。
【Abstract】 A 2D numerical model is developed to simulate flow and suspended sediment concentration in oscillating turbulent boundary layer over plane bed, which is based on the NS equations with the Smagrionsky’s subgridscale turbulence modelThe calculation results agrees well with the flow characteristic and sediment concentration measured in experiment practically
【关键词】 振荡流;
大涡模拟法;
悬移质泥沙;
数值模型;
【Key words】 oscillatory flow; large eddy simulation; suspended sediment; numerical model;
【Key words】 oscillatory flow; large eddy simulation; suspended sediment; numerical model;
【基金】 国家自然科学基金资助项目(59809006,10202003)~~
- 【文献出处】 水科学进展 ,Advances In Water Science , 编辑部邮箱 ,2003年02期
- 【分类号】TV142
- 【被引频次】10
- 【下载频次】271