论文部分内容阅读
针对三汊河河口闸水流偏右侧的不利流态,为寻找改善水流流态的工程措施,采用大范围水深平均二维数学模型,对过闸水流流态进行了模拟研究。在难以改变现有地形的情况下,提出在闸前布置导流墙的工程措施,采用闸前左右岸流速比、水位差以及左右闸孔过流流量占比等参数作为改善效果的评价指标。结果表明,在合适墙长与墙体角度下,导流墙可起到明显的流态改善效果。
In view of the unfavorable fluid flow to the right of the sluice gate in the Sanbiao River estuary, in order to find engineering measures to improve the fluid flow regime, a large-scale water depth average two-dimensional mathematical model was used to simulate the flow pattern of the sluice. In the case of difficult to change the existing terrain, the paper puts forward the engineering measures of arranging the guide wall in front of the sluice. Parameters such as the flow velocity ratio, the water level difference between the left and right banks and the proportion of the cross flow flow rate around the gate are taken as the evaluation indexes to improve the effect. The results show that the wall can play a significant role in improving fluid flow under the proper wall length and wall angle.