日本機械学会論文集
Online ISSN : 2187-9761
ISSN-L : 2187-9761
流体工学,流体機械
円形平板への液滴列衝突による形成液膜の観察
村木 駿介山本 翔也真田 俊之渡部 正夫
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ジャーナル フリー

2017 年 83 巻 848 号 p. 17-00047

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Droplet impingement phenomena are found in the wide variety of industrial processes, however the detail of liquid film structure formed by the continuous impact of droplets is not clarified. In this study, we experimentally investigated behavior of liquid film which was formed by a droplet train impact. Especially, we focused on the diameter of hydraulic jump formed on a circular plate. The effects of nozzle diameter and liquid flow rate on the jump diameter were investigated. In addition, we compared the liquid film by the droplet train impact with that by a liquid column impact. As a result, the hydraulic jump was observed under the smaller water flow rate condition compare to the liquid column impact. And the jump diameters for the case of droplet train impact were greater than that of liquid column impact. In addition, the liquid film heights after hydraulic jump on a small circular plate were sensitive to either the droplet train impact or liquid column impact.

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