倾斜式消浪板在输水工程中的稳水特性研究

Study on Water Stability Characteristics of Inclined Plate in Water Conveyance Project

为研究倾斜式消浪板在输水工程中的稳水特性,避免局部明流段波浪传播导致的下游流态交替、掺气及振动冲击等水力危害现象的发生,通过物理模型试验比较分析浸水面积、浸水深度和倾斜角度等参数对倾斜式消浪板稳水特性的影响。试验结果表明,倾斜式消浪板稳水效果随浸水深度和倾角绝对值的增大,均呈现先增强后减弱的变化规律;当无量纲浸水深度为0.44,倾角为-30°左右时,倾斜式消浪板能削减约72%的波高,稳水效果较好。

In order to study the water stability characteristics of inclined plate in water conveyance project and avoid the hydraulic hazards such as downstream flow pattern alternation,aeration and vibration shock caused by wave propagation in local open flow section,the influences of immersion area,immersion depth and inclination angle on the water stability characteristics of inclined plate are analyzed and compared through physical model tests.It is found in the experiments that the water stabilization effect of inclined plate increases first and then decreases with the increase of the immersion depth and the absolute value of inclination angle,and when the dimensionless immersion depth is 0.44 and the inclination angle is about-30°,the inclined plate can reduce the wave height by about 72%,and the water stabilization effect is good at this time.