反应堆核燃料组件定位格架的两相流动压降计算  

The Calculation of Two-Phase Flow Pressure Drop in Reactor Fuel Elements'Spacer Grid

作　　者：阎昌琪 

机构地区：[1]哈尔滨船舶工程学院

出　　处：《核动力工程》1990年第1期87-92,共6页Nuclear Power Engineering

摘　　要：燃料组件定位格架的两相流动压降计算是反应堆热工水力计算的一个重要内容.本文从两相流动的机理分析入手,根据动量平衡关系推导出了定位格架的两相流压降计算关系式.并用实验数据进行了验证,实验数据与计算公式之间的偏差不超过±30%.The spacer grid is an important element used in the fuel assembly in the core of a nuclear reactor.The prediction of form loss across thespacer grid under the condition of two-phase flow is an important sub-ject in the thermal hydraulic design and analysis of a nuclear reactor.Ba-sed on the consideration of the two-phase flow mechanisms in the spac-er grid and the momentum balances a new correlation used to predictthe pressure drop across the spacer grid in two-phase flow is presented.The validity of the correlation is judged by the available experimentaldata,the correlation predicts the experimental data within ±30%.

关 键 词：反应堆 燃料组件 定位格架 两相流 

分 类 号：TL334[核科学技术—核技术及应用]