The Proceedings of the Fluids engineering conference
Online ISSN : 2424-2896
2018
Session ID : OS2-5
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Observation of air layer profiles under impacting droplet
*Riichiro EndoMasao WatanabeKazumichi KobayashiHiroyuki Hujii
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Abstract

Droplet impact against a solid surface is a very important phenomenon in the fields of semiconductor cleaning and spray cooling. However, the detailed mechanism has not yet been clarified; hence, clarification and control of the dynamics of droplet impact are required. In this study, we consider the influence of the air film formed between the solid surface and the droplet on the droplet collapse process at droplet impact. We observed the air film at droplet impact by using color interferometry. We measured the duration when the air film existed and the diameter of dimple formed under the droplet.

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© 2018 The Japan Society of Mechanical Engineers
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