深水垫情况下水垫塘淹没射流特征分析  

Analysis on characteristics of submerged jet flow in water cushion pool with deep water cushion

作　　者：王英奎 廖仁强 韩喜俊[2] 史莹[3] 江春波[3] 

机构地区：[1]长江勘测规划设计研究院,湖北武汉430010 [2]长江科学院,湖北武汉430015 [3]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水利水电技术》2016年第1期82-84,89,共4页Water Resources and Hydropower Engineering

基　　金：长江科学院开放研究基金资助项目(CKWV2014203/KY);国家自然科学基金(51279082)

摘　　要：本文基于自由射流扩散规律的研究成果,在对常规水垫塘内水流流态进行分析研究的基础上,结合模型试验成果对深水垫情况下水垫塘内水流流态进行了分析,对淹没射流特征进行了研究。研究结果认为,深水垫情况下的水垫塘内水流流态的规律性比较明显,淹没冲击射流流态与淹没水跃流态平顺衔接过渡,总体上可认为是一种射流流态,符合射流的线性扩散规律。Based on the achievements from the study made on the free-jet flow diffusion law, the water flow pattern in the water cushion pool with deep water cushion is analyzed in combination with the relevant model experiment result on the basis of the a- nalysis and study made on the flow pattern in the conventional water cushion pool, and then the characteristics of the sub- merged jet flow is studied. The study result shows that the regularity of the flow pattern in the water cushion pool with deep wa- ter cushion is more obvious with a smooth join-transition between both the flow pattern of the submerged jet and the flow pattern of the submerged hydraulic jump, thus it can be considered as a jet flow pattern accorded with the linear diffusion law of the jet flow.

关 键 词：深水垫 水垫塘 淹没射流 紊动规律 

分 类 号：TV135.2[水利工程—水力学及河流动力学]