茶园水库挑流消能中气囊产生成因及试验研究

Test research & Formation Causes of Air Pocket Producing in Bucket Dissipation of Cha' yuan Reservoir

在一般的挑流消能设计过程中,往往只注重水舌的挑距及冲坑的深度,而往往忽略了上游边界条件对进水水流的流态影响。本文结合茶园水库工程水工模型试验,对大流量挑流泄洪时上游库内水面形成的弧形紊流带的成因进行了分析,井重点研究了消除弧形紊流的方案,确保了工程的运行安全。

In common bucket dissipation design, deflecting distance and depth of scour hole are usually considered important, but the influence of upstream boundary condition to flow phenomenon of inflow is ignored. Combining with hydraulic model test of Cha' yuan Reservoir, analyzing the causes of curved turbulent belt formed on the upstream surface of the reservoir when bucket flood discharging with big flow, the writer emphatically researches the scheme eliminating the curved turbulent flow in order to ensure the project operation safety.