桥墩组中轴线与水流方向夹角对河流流场影响的数值模拟研究  

Numerical Simulation Research on the Affection of the Bigger Angle Between the Middle-line of the Piers Group and the River Flow

作　　者：吴飞[1] 

机构地区：[1]广东省水利电力勘测设计研究院,广东广州510635

出　　处：《水资源与水工程学报》2009年第2期75-78,共4页Journal of Water Resources and Water Engineering

摘　　要：采用平面二维数学模型,在理想矩形水槽中对不同夹角下桥墩组对流场的影响及桥墩优化布置进行了研究,并通过工程实例计算进行了进一步印证,结果表明:将左右幅桥墩错开布置可较好地减少因桥墩组中轴线与水流方向夹角过大而引起的对河流流场造成的不利影响。Using the plane 2-D mathematical model, this paper carried out the research for the affection of the piers group with different angles to the flow direction and piers group optimal layout in an ideal rectangular flume, then verified the results of the study by the practical project. The results make cheat that stagger layout of the left pier and the right pier can reduce the affection to the direction of the flow by the big angle with the piers group.

关 键 词：桥梁 数学模型 河流流场 桥墩错开布置 

分 类 号：TV131.4[水利工程—水力学及河流动力学] O242.1[理学—计算数学]