作　　者： ;

机构地区： 中国科学院力学研究所国家微重力实验室

出　　处： 《工程热物理学报》 2004年第5期801-803,共3页

摘　　要： 本文报道了微重力条件下90°弯管内气液两相流型实验结果。弯管内径12.7 mm,弯曲半径76.5mm,气、 液两相表观流速分别为1.0—23.6 m/s和0.09—0.5 m/s。本文分析了观测到的弹状流、弹-环过渡流和环状流的典型特 征,比较了与微重力直管内相应流型间及常重力弯管两相流型间的异同。 In the present study, a set of experimental data of two-phase flow patterns and their transitions in a 90° bend with inner diameter of 12.7 mm and curvature radius of 76.5 mm at microgravity conditions are reported. Gas and liquid superficial velocities are found to range 1.0~23.6 m/s for gas and 0.09~0.5 m/s for liquid, respectively. Three major flow patterns, namely slug, slug-annular transitional, and annular flows, were observed in this study. Focusing on the differences between flow patterns in bends and their counterparts in straight pipes, detailed analyses of their characteristics are made.

关 键 词： 两相流 流型 弯管 微重力

领　　域： [理学] [理学]