Identification of the impact regimes of a liquid droplet propelled by a gas stream impinging onto a dry surface at moderate to high Weber number
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- 作者：Mahsa Ebrahim ; mebrahim@villanova.edu" class="auth_mail" title="E-mail the corresponding author ; Alfonso Ortega
- 关键词：Droplet impact ; Spray cooling ; Droplet dynamics
- 刊名：Experimental Thermal and Fluid Science
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：80
- 期：Complete
- 页码：168-180
- 全文大小：2773 K
文摘
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A gas propellant can greatly augment droplet impact velocity.
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Droplet recession was dramatically delayed and reduced for a propelled droplet.
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A gas propelled droplet can experience fine deposition without splash at considerably higher impact We number compared to a free-falling droplet.
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Correlations were proposed for the dynamic spreading and receding phases of a gas propelled droplet impact.
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An analytic model was developed to determine the instantaneous droplet diameter of a gas propelled droplet impact.