An Experimental Study on the Drag Property of High-Temperature Particles Falling into Cold Liquid Pool  

作　　者：李小燕 匡波 杨燕华 徐济鋆 

机构地区：[1]Dept. of Nuclear Science & System Eng., Shanghai Jiaotong Univ.

出　　处：《Journal of Shanghai Jiaotong university(Science)》2003年第1期58-62,共5页上海交通大学学报（英文版）

基　　金：National Natural Science Foundation ofChina( No. 5 0 0 460 2 6)

摘　　要：This experiment is to study the special resistant induced by the high-speed evaporation surrounding themoving high-temperature particles. An observable equipment was designed, in which the first 11 experiments wereperformed by pouring one or several Zirconia spheres with various high-temperature and a diameter of 3～ 10 mminto a water pool. The particles falling-down speeds were recorded by high-speed photographic instrumentation,and pressures and water temperatures were measured. A comparison between the experiments with cold and hotspheres respectively, employing three different sphere types each, was presented. The experimental data, com-pared with the theory of the evaporation drag model, are nearly identical.This experiment is to study the special resistant induced by the high speed evaporation surrounding the moving high temperature particles. An observable equipment was designed, in which the first 11 experiments were performed by pouring one or several Zirconia spheres with various high temperature and a diameter of 3~10 mm into a water pool. The particles falling down speeds were recorded by high speed photographic instrumentation, and pressures and water temperatures were measured. A comparison between the experiments with cold and hot spheres respectively, employing three different sphere types each, was presented. The experimental data, compared with the theory of the evaporation drag model, are nearly identical.

关 键 词：vapor explosion high  temperature particles contact with low  temperature liquid evaporation drag model observable experiment equipment 

分 类 号：O552.6[理学—热学与物质分子运动论]