原子能科学技术2011，Vol.45Issue(12)：1431-1436,6.
窄矩形通道内两相流动压降特性研究
Resistance Characteristics of Two-Phase Flow Through Narrow Rectangular Duct
摘要
Abstract
Two-phase frictional pressure drop gradients of air-water mixture were studied in two vertical narrow rectangular ducts (40 mm×1. 6 mm and 40 mm×3 mm). The experimental results show that the conventional correlations fail to predict the two-phase flow pressure drop in narrow rectangular duct with the 1. 6 mm gap, but can predict the two-phase pressure gradient satisfactorily in rectangular duct with 3 mm gap except Friedel model and Tran model. Different modified Chisholm correlations were proposed in two regions which were distinguished by the liquid Reyonlds number. The results show that the constant C has a linear relationship with the hydraulic diameter, and C decreases with the increase of the hydraulic diameter. The new correlations gave accurate predictions of the pressure drop.关键词
窄矩形通道/摩擦阻力压降/两相折算系数/洛克哈特—马蒂里参数Key words
narrow rectangular duct/frictional pressure drop/two-phase multiplier/L-M parameter分类
能源科技引用本文复制引用
王广飞,阎昌琪,孙立成,谢清清,贾辉..窄矩形通道内两相流动压降特性研究[J].原子能科学技术,2011,45(12):1431-1436,6.基金项目
高等学校博士点专项科研基金资助项目(20092304110020) （20092304110020）
