複合流路における気液二相流体の流動 : 第1報,副流路への気液流重配分

概要

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Fully developed two-phase air-water flows through a multiple channel consisting of two interconnected subchannels were investigated. The purpose was to obtain more reliable data on the flow distributions when the cross-sectional area of the subchannels is different. Five test sections were used. The three of them were rectangular ones aligned vertically, and their area ratio of the subchannels were 1.5, 2 and 3.. The two others had the semi-circular subchannels of the area ratio 1.5 ; one was arranged horizontally while the other vertically. Void drift phenomena have been observed not only in vertical flows but also in horizontal flows. A more prominent void drift took place in a slug flow while less pronounced in a bubble flow and an annular flow. It was seen that the channel geometry has very little effects on the flow distributions and the flow pattern transitions. This supports the so-called one dimensional subchannel analysis in such a multiple channel.
一般社団法人日本機械学会の論文
1986-01-25