高温颗粒下落冷池的沸腾蒸发瞬变阻力特性研究  

An Experiment Study of the Transient Drag Property on the High-Temperature Particle Falling into the Cold Liquid Pool

作　　者：李小燕[1] 杨燕华[1] 徐济鋆[1] 陈宏[1] 

机构地区：[1]上海交通大学核科学与系统工程系,200030

出　　处：《核科学与工程》2002年第3期268-273,共6页Nuclear Science and Engineering

基　　金：国家自然科学基金资助项目 (5 0 0 4 6 0 2 6 )

摘　　要：设计建立了高温颗粒下落冷液沸腾可视化实验装置 ,初次实验将一个或有限几个高温球形颗粒坠入低沸点的冷液中 ,利用高速摄像机记录其在冷液中的运动速度 ,以了解由周围冷液快速蒸发引起的作用在运动中高温颗粒上的特殊阻力 。The content of this study was to design and build an observable experiment facility. The first series of experiments were performed by pouring an high temperature particle or six high temperature particles into a low saturated temperature liquid pool. The particles falling down speeds were recorded by high speed camera, so we can know the special resistant acting on the moving high temperature particles, which is induced by the high speed evaporation surrounding the particles. The study had experimentally verified the theory of evaporation drag model.

关 键 词：落冷池 沸腾蒸发 瞬变阻力特性 蒸汽爆炸 高温颗粒 冷液 相互作用 蒸发电力模型 可视化实验 核反应堆 

分 类 号：TL375[核科学技术—核技术及应用]