田市抽水站进水前池水力特性数值模拟  

Numerical Simulation for Behaviors of Flows in Forebay of Tianshi Pumping Station

作　　者：刘哲[1,2] 魏文礼[2] 戎贵文[2] 陈冲[2] 

机构地区：[1]交通部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456 [2]西安理工大学水利水电学院,陕西西安710048

出　　处：《水利与建筑工程学报》2009年第3期49-51,共3页Journal of Water Resources and Architectural Engineering

摘　　要：借鉴有关弯道水流流速分布的研究成果,计入弯道环流引起的横向动量交换,对曲线坐标系平面二维浅水方程做了修正;采用边界处正交的曲线网格生成技术,处理复杂的计算区域边界。采用修正后的模型对田市抽水站进水前池改造前后的水流流态作模拟分析,来验证改造设计方案的合理性。According to the past research results about the bend flows, the modification of a horizontal 2D shallow water model in eurvilinear coordinates is made considering the transverse momentum exchanges caused by secondary flows in channel bends, and the curvilinear coordinate system is generated by using the proposed boundary-fitted coordinate technology, with which a curvilinear grid being orthogonal near the boundaries can be obtained. By using the modified mathematical model, the behaviors of the flows through the curved channel in the forebay of Tiansi Pumping Station are computed and analyzed, and it is showed that the computation results coincide well with the measured data, so the design scheme is reasonable.

关 键 词：边界拟和坐标技术 横向动量交换 二次流 

分 类 号：O242.1[理学—计算数学] TV135[理学—数学]