文章基本信息

标题：The Effect of Film Temperature on crater morphology during the impact of a single droplet
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作者：D. B. Hann ; D. B. Hann ; E.R. Underhill 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2016
卷号：84
页码：1-4
DOI：10.1051/matecconf/20168400015
语种：English
出版社：EDP Sciences
摘要：The effect of varying the film temperature from 15C to 60 C is investigated using high speed video imaging. It is demonstrated that increasing the temperature difference between the droplet and film liquid changes the size and frequency of the secondary droplets. The impact can be split into three regimes. In the crater expansion regime, the crater follows a self-similar behaviour. In the second stage, the crater becomes deeper and wider at higher temperatures possibly due to decrease in the viscosity or surface tension. It is seen that the crater collapse is less dependent on the temperature and occurs at fixed time for a particular Webber number.