化工学报Issue(2)：495-500,6.DOI:10.3969/j.issn.0438-1157.2014.02.018
基于群体平衡原理的蒸汽发生器汽液两相流动与沸腾数值模拟
Numerical simulation of vapor-liquid two-phase flow and boiling in steam generator based on population balance
摘要
Abstract
Based on similarity principle, a three-dimensional“unit pipe”physical model is built for a steam generator coupled with quatrefoil tube support plates. A multiple size group model considering breakup and coalescence of bubbles is used to describe bubble size distribution and hydraulic characteristic in the secondary side. The process of local vapor-liquid two-phase boiling with phase change is calculated through a thermal phase change model. Numerical investigation is carried out on vapor-liquid two-phase flow and boiling of steam generator at Daya Bay Nuclear Power Plant. Simulation results show that vapor and liquid velocities rapidly increase in the support plate and jet flow appears, and when the flow leaves the support plate orifice, reflow forms rapidly. The periodic distribution from small to large bubble size occurs obviously within adjacent tube support plates and the maximum bubble diameter decreases slowly in the direction of hot and cold legs. In addition, the averaged heat transfer coefficient of secondary side agrees well with the results calculated using Rohsenow’s correlation.关键词
MUSIG/群体平衡/热相变模型/汽液两相流Key words
multiple size group/population balance/thermal phase change model/vapor-liquid two-phase flow分类
能源科技引用本文复制引用
杨元龙,孙宝芝,杨柳,郑陆松..基于群体平衡原理的蒸汽发生器汽液两相流动与沸腾数值模拟[J].化工学报,2014,(2):495-500,6.基金项目
国家自然科学基金项目(51109048）；中国博士后科学基金项目(20100471017)；黑龙江省博士后科学基金项目(LBH-Z09233)。@@@@supported by the National Natural Science Foundation of China (51109048), the Post-Doctoral Science Foundation of China (20100471017) and the Post-Doctoral Science Foundation of Heilongjiang Province (LBH-Z09233) （51109048）；中国博士后科学基金项目(20100471017）
