Analysis and application of the scale effect of flood discharge atomization model  

作　　者：WU ShiQiang 1,WU XiuFeng 1,2,ZHOU Hui 1,CHEN HuiLing 1,SHA HaiFei 1 & ZHOU Jie 1 1 State Key Laboratory of Hydrology-Water resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing 210029,China 2 Hohai University,Nanjing 210098,China 

出　　处：《Science China(Technological Sciences)》2011年第S1期64-71,共8页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China and the Hydropower Development of Yalong River Foundation (Grant No.50579084);the National Key Technologies R&D Program of China(Grant No.2008BAB29B04-3-3)

摘　　要：The phenomenon of discharge atomization occurs as hydraulic structures discharging,which influences the safety of power station,electrical equipment and produces environmental pollution.A series of physical model tests and feedback analysis are adapted to preliminarily study the scale effect of discharge atomization model by use of the field observation data of discharge atomization.The effect of Re and We numbers of flow on the atomization intensity is analyzed.A conversion relationship of atomization intensity between prototype and model results and the similarity criteria of the atomization range are developed. The conclusion is that the surface tension of discharge atomization model could be ignored when the Weber number is larger than 500.Some case studies are given by use of the similitude criteria of the atomization model.The phenomenon of discharge atomization occurs as hydraulic structures discharging,which influences the safety of power station,electrical equipment and produces environmental pollution.A series of physical model tests and feedback analysis are adapted to preliminarily study the scale effect of discharge atomization model by use of the field observation data of discharge atomization.The effect of Re and We numbers of flow on the atomization intensity is analyzed.A conversion relationship of atomization intensity between prototype and model results and the similarity criteria of the atomization range are developed. The conclusion is that the surface tension of discharge atomization model could be ignored when the Weber number is larger than 500.Some case studies are given by use of the similitude criteria of the atomization model.

关 键 词：DISCHARGE ATOMIZATION SCALE effect energy DISSIPATION MODEL test FEEDBACK analysis 

分 类 号：TV135.2[水利工程—水力学及河流动力学] TV131.3