Y字分岐管による気液二相流の相分離特性に関する研究 : 第2報,管径の影響と微小重力場実験結果(流体工学, 流体機械)

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In order to develop a phase separation technique under microgravity condition, the method of the impacting Y-junction by utilizing the difference of inertia force between gas and liquid phases is proposed. Experiments of phase separation in an impacting Y-junction of 10 mm ID placed in a horizontal plane were carried out under normal and microgravity conditions using air or gaseous nitrogen and water as working fluids. The phase separation performance under microgravity was measured by controlling the extraction rate during the microgravity period of about 20 seconds by parabolic trajectory flight of the airplane (G II). As a result, it was shown that liquid extraction from two-phase flow was possible by using a Y-junction for every condition in the microgravity experiments. About 60% maximum of all the liquid phase could be extracted from incoming gas-liquid two-phase flow by Y-junction under microgravity in our experimental range.
2002-09-25