非円形ノズルによる均一粒の発生 : 第2報,液の性質の影響

概要

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A simple method for producing uniform-size droplets has been proposed. A thin rectangular nozzle can generate a chain-type jet and, under some conditions, the jet disintegrates into droplets of high uniformity. The previous paper reported on the mechanism of uniform-droplet formation, and showed that the imposition of sound vibration to the jet can remarkably stabilize the phenomenon and extend the producible range. In the present paper, experiments are carried out using suger and ethanol solutions to reveal the effect of liquid properties, such as viscosity and surface tension, on the producible range of uniform-droplet. The results showed that both the increased viscosity and the isreased surface tention have a tendency to extend the producible range, though far increased viscosity has a negative effect. The producible range lies over Weber Number W_e=20~3000 and stability number S_b=0.003~0.08.
社団法人日本機械学会の論文
1985-11-25