原子能科学技术Issue(10)：1793-1798,6.DOI:10.7538/yzk.2013.47.10.1793
矩形通道内气水两相流摩擦阻力计算模型
Model for Calculating Frictional Resistance of Air-water Two-phase Flow in Rectangular Channels
摘要
Abstract
The frictional resistance characteristics of air-deionized water two-phase flow in two vertical rectangular channels with respective cross sections of 1.41 mm × 40 mm and 3 mm × 40 mm were experimentally studied under atmospheric pressure condition . Eleven classical two-phase flow frictional resistance models were assessed with the acquired 764 data sets .The results show that Lee-Lee model fits well with the data ,but there still exists relatively large deviations in high (Rel > 8 700) and low (Rel < 600) liquid Reynolds number regions .In the liquid turbulent region (Rel ≥2 000) the most accurate model is Chisholm B model with the mean absolute errors of 6.13% and 6.43%for the two channels respectively ,which however predicts the frictional pressure drop in the liquid laminar region (Rel <2 000) with large deviations compared to experimental data .The modification to two-phase dynamic viscosity is implemented according to the flow resistance characteristics and a modified correlation is proposed for the liquid laminar region , with which the predicted results show a good agreement with the experimental data .关键词
矩形通道/两相流/摩擦阻力/Chisholm B模型Key words
rectangular channel/two-phase flow/frictional resistance/Chisholm B model分类
能源科技引用本文复制引用
王洋,阎昌琪,孙立成,金光远,闫超星..矩形通道内气水两相流摩擦阻力计算模型[J].原子能科学技术,2013,(10):1793-1798,6.基金项目
国家自然科学基金资助项目（11175050）；中央高校基本科研业务费专项资助项目 （）
