An experimental study on the spreading and temperature distribution of a ship model ' s wake in a thermal stratified flow 热分层环境下船模尾流温度分布与扩展规律的试验研究
Obtains two kinds of quantity group based on the similitude principle , i . e . the dimensionless similarity criterion and the dimensional thermal stratification height 根据相似原理综合各因素得到了两种形式的综合量:无量纲的相似准则和热分层高度等量纲不为一的综合量。
3 ) . the flow velocity and temperature change rapidly in hot plenum under the transient condition such as in the case of reactor scram condition . thermal stratification phenomena will be observed nearby the inlet of intermediate heat exchanger 在事故停堆后的瞬态分析中,热钠池的流场和温场变化剧烈,并在中间热交换器的入口附近形成稳定的热分层。
There will be a hot water layer in the water of cmt when vapour spews to uppercooling water surface vertically and coagulates directly . the higher of the vapour pressure of prz and the initial water temperature of cmt are , the deeper the hot water layer is . and obtaining the experience formula of the hot water layer is as follows : the condensation coefficient is high when vapour coagulate at first , then it will lessen with the process of coagulation , the higher of the vapour pressure of prz and the initial water temperature of cmt are , the higher of condensation coefficient is 蒸汽垂直喷入过冷水表面凝结时, cmt中水有明显热分层现象, prz中饱和蒸汽压力越高, cmt中水初始温度越高,热分层厚度越大,热分层厚度的经验关联式为:凝结刚开始时,凝结换热系数非常大, ,随着凝结的进行,凝结换热系数越来越小, prz中饱和蒸汽压力越高, cmt中水初始温度越高,凝结换热系数越大。