気ほうを含んだ液体の管内流動に関する研究(第1報)

概要

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In the flow of the liquid containing the bubbles such as in the boiler pipe or air lift pump, the frictional resistance and other quantities take very complicate manners due to the relative velocity between the liquid and the bubbles. An experimental apparatus was constructed with two vertical and two horizontal pipes forming a loop of oblong shape, to measure the pressure difference which induces the flow of circulation, and the frictional resistance of the water containing bubbles. The results of the experiments reveals that the relative velocity of the water and the bubble is a function of the denseness factor K of the bubbles only, which is the volume ratio of the bubbles to the whole water at any moment and specified position and that the frictional coefficient of the flow is another function of K within the range K<0.5 and K>0.5.
社団法人日本機械学会の論文
1956-09-25