摘要
通过模型试验 ,研究了碰撞角和流量比与碰撞消能效果的关系 ,提出射流碰撞的主要作用在于分散水流 ,在确定流量比时不必拘泥于流量比等于 1的传统思路 ,采用小股射流碰撞大股主射流 ,同样能起到分散水流的作用 ,改善下泄水流进入水垫塘时的入流条件 ,从而提高碰撞消能效果。试验表明 :在碰撞角较大时 ,中表孔流量比达到 0 .
Through model experiments, relation between impact angel and discharge ratio and effect of impact for energy dissipation have been studied in this paper. The result indicates the main function of jet impact in air is to disperse flow. When deciding discharge ratio, it is not necessary to make it equal to 1. The aim of dispersing jet flow can be gotten by colliding large jet flow with small one, which will improve inflow condition of jet flow when it enters the water plunge pool and improve effect of impact for energy dissipation.Experiments show that the jets flow can be fully scattered when the ratio of flood discharge of the middle outlet and the top one reaches 0.2 under the condition of relative bigger impact angel.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
2002年第2期13-15,共3页
Journal of Sichuan University (Engineering Science Edition)
基金
四川大学青年科研基金资助项目
