高桩码头对河道流场影响的数值模拟  

Numerical simulation of river flow patterns affected by standing pile wharf

作　　者：李光炽[1] 周晶晏[2] 张贵寿[3] 

机构地区：[1]河海大学水资源环境学院,江苏南京210098 [2]河海大学交通与海洋工程学院,江苏南京210098 [3]绍兴文理学院土木工程系,浙江绍兴312000

出　　处：《河海大学学报（自然科学版）》2004年第2期216-220,共5页Journal of Hohai University(Natural Sciences)

摘　　要：在讨论高桩码头对河道流场影响数值模拟方法的基础上,为确保流场模拟精度,采用正交边界拟合坐标变换法模拟弯曲变化的河道计算域,应用二维全隐式耦合联解模型离散控制方程、矩阵追赶法求解代数方程.同时引进过水率和修正糙率的概念并提出了间接等效模拟高桩码头对流场影响的方法.算例表明,该方法是行之有效的.Based on the analysis of numerical methods for simulation of river flow patterns affected by standing pile wharfs, the boundary fitted orthogonal coordinate system is used for simulation of the computation region with varying curved boundaries, and the full-implicit coupled solution model and matrix chase-after method are adopted to solve the algebraic equation. These means ensure the accuracy of calculation. By introduction of the concepts of overflowing rate and revised roughness, an indirect equivalent simulation method is proposed. Examples show that the method is effective.

关 键 词：高桩码头 河道流场 数值模拟 二维水流模拟 矩阵追赶法 离散控制 

分 类 号：TV131.4[水利工程—水力学及河流动力学]