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Title: The ejecting lamella of impacting compound droplets
Authors: Liu, Dongdong
Tran, Tuan
Keywords: Multiphase Flows
Spray Cooling
Engineering::Mechanical engineering
Issue Date: 2019
Source: Liu, D., & Tran, T. (2019). The ejecting lamella of impacting compound droplets. Applied Physics Letters, 115(7), 073702-. doi:10.1063/1.5097370
Series/Report no.: Applied Physics Letters
Abstract: Impacting dynamics of compound droplets consisting of oil and water–glycerol mixture transitions from spreading to splashing with an increasing volumetric oil-mixture ratio. The transition to splashing is directly related to the dynamics of the ejecting lamella upon impact. Here, we present a detailed study of the ejecting lamella at the early stage of the impact. We experimentally characterize the ejection velocity and time of the ejecting lamella for a wide range of impacting velocities, volumetric oil ratios, and viscosities of the mixture. We show that ejecting dynamics depends significantly on the volumetric oil-mixture ratio, while it is slightly affected by the viscosity of the mixture. We also propose and verify experimentally a predictive model for the ejection velocity and time of the lamella.
ISSN: 0003-6951
DOI: 10.1063/1.5097370
Rights: © 2019 The Author(s). All rights reserved. This paper was published by AIP Publishing in Applied Physics Letters and is made available with permission of The Author(s).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MAE Journal Articles

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