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为了解齿坎式宽尾墩的消能效果和机理,以出山店水库枢纽工程为例,在模型试验和数值模拟结果吻合良好的基础上,研究了齿坎式宽尾墩的消能特性和流态,并进一步分析了齿坎式宽尾墩尾端折角大小和齿坎角度对其消能效果的影响。结果表明,水流通过宽尾墩的齿坎后分层,不同层的水流流速不同而相互紊动摩擦,层间水翅在较远处产生剧烈碰撞,进而增强消能效果,获得了最优齿坎式宽尾墩体型,可为工程设计提供参考。
In order to understand the effect and mechanism of energy dissipation of flaring ridge tail pier, taking the Izushide Reservoir Hydropower Project as an example, the energy dissipation characteristics of ridge flaring flaring pier and the numerical simulation results are studied. Flow pattern, and further analyzed the influence of the width of the tip angle and the angle of the ridge ridge on the energy dissipating effect of the ridge tail piers. The results show that the water flows through the ridge of flaring piers and stratifies. The velocity of flow in different layers fluctuates with each other and the friction between each other and water fins in the layer fiercely collide further, which further enhances the energy dissipation effect and obtains the optimal ridge Wide-width pier shape, which can provide reference for engineering design.