不对等射流空中碰撞扩散消能研究  

Study on Unequal Jet Impact in Air for Energy Dissipation

作　　者：刁明军[1] 杨永全[1] 

机构地区：[1]四川联合大学高速水力学国家重点实验室

出　　处：《四川联合大学学报（工程科学版）》1998年第6期96-101,共6页

基　　金：国家自然科学基金

摘　　要：本文在总结挑流碰撞消能已有研究成果的基础上，提出射流空中碰撞消能的主要作用在于分散水流，用小股射流碰撞大股主射流，可以使主射流充分分散，达到消能目的。通过模型试验，分析了不对等射流的水力特性，研究了满足消能需要的最小流量比，从而提出了不对等射流空中碰撞消能的新思路，并为创造这一新的消能方式打下了初步基础。Summarizing the research application of the energy dissipation type of water jet impact in air,this paper indicates that the main effect of the jet impact for energy disspation is to disperse the jet flow.The scattered jet flow impinges into the downstream water pool,which greatly improves the inflow condition of the submergd jet flow in the water cushion pool making it diffuse very quickly.The model experiment shows that a large jet flow can be scattered by a small jet through impacting.The minimum discharge ratio for flow dispersion has been studied.The unequal jet impact in air for energy dissipation is brought forward firstly in this paper as a new type of energy dissipator.

关 键 词：挑流 碰撞消能 不对等射流 空中碰撞消能 

分 类 号：TV653.3[水利工程—水利水电工程]