环形狭缝膜态沸腾弥散两相流动特性研究  

Study of Film Boiling Dispersed Two Phase in Narrow Annular Gap

作　　者：王增辉[1] 贾斗南[1] 刘瑞兰[1] 苏光辉[1] 秋穗正[1] 

机构地区：[1]西安交通大学,陕西西安710049

出　　处：《核科学与工程》2003年第2期114-117,151,共5页Nuclear Science and Engineering

摘　　要：在 3种不同间隙的同心竖直环形狭缝膜态沸腾试验段中 ,研究了以去离子水为工质的两相弥散流摩擦压降 ,比较了环形狭缝和圆形通道中两相流动摩擦压降的不同 ,还研究了环形间隙对摩擦压降的影响。结果表明 :不同间隙下的环形狭缝内膜态沸腾弥散流摩擦压降可用修正的Sadatomi方法计算 。Experimental investigation on film boiling dispersed two phase friction pressure drop in narrow annular gap with deionized water was performed in three types of narrow annular gap. The friction pressure drop differences were compared between narrow annular gap and circular channel was compared in the paper. The influence of narrow annular gap on friction pressure drop was examined in this paper. Results showed that the modified Sadatomi's correlation can be used to calculate film boiling dispersed two-phase friction pressure drop in narrow annular gap for engineering application.

关 键 词：环形狭缝 膜态沸腾 弥散两相流动特性 狭缝传热技术 

分 类 号：TL334[核科学技术—核技术及应用]