含有不可凝结气体的蒸汽壁面冷凝的数值模拟  

Numerical Simulation of Steam Condensation in Vertical Tube with the Presence of Non-condensable Gas

作　　者：文杰[1] 梁木子[1] 张会武[2] 程先华[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]安徽省电力科学研究院,合肥230022

出　　处：《上海交通大学学报》2009年第2期299-303,共5页Journal of Shanghai Jiaotong University

摘　　要：根据工程上广泛应用的经验性Uchida关联式,通过基于有限体积法的流场分析软件CFX的数值计算,对垂直管道中含有不可凝结气体的蒸汽冷凝进行模拟.结果表明,经验性Uchida关联式的计算结果可直观并且准确地反映与实际相符的流场温度变化趋势和组分浓度变化.该数值模拟方法对于研究小尺寸且几何形状简单的物理模型内不可凝结气体的积聚情况具有指导意义.The steam condensation in a vertical tube with the presence of non-condensable gas was performed by widely used Uchida empirical correlation, using the finite volume analysis software CFX. The computation results of the empirical correlation has verified the variation of temperature and component mass concentration vividly and correctly. It is significant that this kind of method can be used to study the accumulation of the condensation in a vertical tube with non-condensable gas in small and simple physical model.

关 键 词：不可凝结气体 冷凝 垂直管 Uchida关联式 

分 类 号：TK22[动力工程及工程热物理—动力机械及工程]