非正交曲线坐标系平面二维丁坝绕流数值模拟研究  

Numerical Simulation of 2-D Flow around Spur Dike in Non-orthogonal Curvilinear Coordinate

作　　者：闫金波[1] 张小峰[1] 陶冶[2] 钱俊 

机构地区：[1]水资源与水电工程科学国家重点实验室武汉大学 [2]黄河勘测规划设计有限公司,郑州450003 [3]长江水利委员会勘测规划设计研究院,武汉430000

出　　处：《中国农村水利水电》2007年第1期107-110,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金资助项目(50579054)

摘　　要：将非正交曲线坐标系下的平面二维河道水流数学模型应用于丁坝绕流计算,克服了正交网格在对不规则边界进行局部模拟时存在的一些缺陷。几种丁坝布置方案下计算所得流速分布、局部流场、水面线变化结果与水槽试验结果吻合良好,表明模型具有较强的适应性和较高的精度,能应用于丁坝绕流计算。Through applying a numerical model of plane river flow in norrorthogonal curvilinear coordinate in the simulation of 2--D flow near the groyne, the shortcomings of orthogonal curvilinear coordinate in simulation of local places with irregular boundaries are successfully avoided. The simulation results are consistent well with flume experiment in velocity distribution, local flow field and variations of water surface It is shown that the model can be used to simulate the flow near groyne with good suitability and high precision.

关 键 词：丁坝 非正交曲线坐标 同位网格 数学模型 

分 类 号：TV131.4[水利工程—水力学及河流动力学]