排沙漏斗三维涡流水流结构  

3 D flow field in funnel sluice

作　　者：唐毅 吴持恭[2] 周著[3] 

机构地区：[1]浙江省水利水电勘测设计院 [2]四川联合大学 [3]新疆农业大学

出　　处：《水利学报》1999年第4期55-59,共5页Journal of Hydraulic Engineering

基　　金：国家自然科学基金

摘　　要：本文首次从数值模拟及模型试验两方面研究了排沙漏斗三维涡流的清水流场水流结构．针对排沙漏斗流场边界的复杂性，作者首先利用三维贴体坐标变换建立了曲线坐标系下的ＮＳ方程及边界条件．选用协变速度分量为独立变量，成功地解决了压力速度耦合问题．其次，利用激光多普勒测速仪（ＬＤＡ）对排沙漏斗三维流场进行了测试研究，计算结果与实测流场较为符合．The flow field in the funnel sluice is studied by numerical simulation and verified by a model test.The finite difference procedure of the N S equation based on the boundary fitted curvilinear coordinates is employed in the numerical simulation of the 3 D flow in the funnel sluice and the covariant velocity components are chosen as independent variables.In the model test,the distributions of mean velocities are measured by using LDV.The computational results are well accord with the experimental data.

关 键 词：排沙漏斗 螺旋流 水流结构 三维流场 

分 类 号：TV135.3[水利工程—水力学及河流动力学] TV146