【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。更多还原

【Abstract】 Through applying a numerical model of plane river flow in non-orthogonal 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.更多还原