微細流路中の高速二相流に関する研究

概要

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Characteristics of critical two-phase flow through a very narrow channel and a labyrinth channel have been investigated. The 0.1 mm high channel was made of transparent glass plates to allow observation of the flow pattern. The critical flow rate was measured for various inlet conditions. For the rectangular channel, the measured flow rate under subcooled inlet conditions was larger than predicted by conventional models because of significant thermal nonequilibrium between phases. A new model incorporating nonequilibrium effects was propose, and the results were compared with experimental data. For the labyrinth channel, the measured flow rate was smaller compared with that for rectangular channel due to the relaxation of thermal nonequlibrium in the cavity. The critical flow rate in the labyrinth channel was also predicted theoretically.
一般社団法人日本機械学会の論文
1989-10-25