窄缝通道两相流相间摩擦特性对再淹没骤冷前沿推进速率的影响研究  

Research on Effect of Two-Phase Interfacial Friction Characteristics on Quench Front Velocity in Narrow Channel

作　　者：曾未[1] 朱力[1] 刘松涛[1] 余红星[1] 孙玉发[1] 

机构地区：[1]中国核动力研究设计院核反应堆设计技术重点实验室,成都610041

出　　处：《核动力工程》2013年第6期66-69,74,共4页Nuclear Power Engineering

基　　金：国家自然科学基金(11275178)

摘　　要：基于Saxena试验获得窄缝通道骤冷前沿推进速率,采用RELAP5程序对实验进行模拟,模拟结果表明程序高估了骤冷前沿推进速率。以两相动量守恒方程和Griffith矩形窄缝通道漂移流速度模型为基础,建立窄缝通道相间漂移流摩擦模型。该模型考虑了窄缝通道几何特征对相间摩擦的影响,能更好地预测低流速下窄缝通道再淹没骤冷前沿推进速率,同时明确了影响窄缝通道骤冷前沿推进速率的关键因素之一。This paper simulates the Saxena experiment by the RELAP5 code, and the quench front velocity is overestimated during the simulation. Then this paper constitutes the narrow channel drift flux interracial friction model based on the Momentum conservation equation and rectangular narrow channel drift flux velocity founded by Griffith. This model reflects the effects on the interfacial friction characteristics from the narrow geometry, so the quench front velocity can be estimated well, meanwhile one of the key factors for the quench front velocity during the narrow channel reflood has been found, which is also the important basis for developing the narrow channel reflood model.

关 键 词：窄缝通道 再淹没 RELAP5 骤冷前沿推进速率 

分 类 号：TL33[核科学技术—核技术及应用]