On relative contribution of electrostatic and aerodynamic effects to dynamics of a levitating droplet cluster

Alexander A. Fedorets; Leonid A. Dombrovsky; Edward Bormashenko; Michael Nosonovsky

doi:10.1016/j.ijheatmasstransfer.2018.12.160

On relative contribution of electrostatic and aerodynamic effects to dynamics of a levitating droplet cluster

Alexander A. Fedorets, Leonid A. Dombrovsky, Edward Bormashenko, Michael Nosonovsky

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

New experimental results and their physical analysis are presented to clarify the behavior of a relatively stable self-arranged droplet cluster levitating over the locally heated water surface. An external electric field of both opposite directions leads to a significant increase in the rate of a condensational growth of droplets in the cluster. The experimental data are used to estimate a small electrical charge of single droplets and the attraction force of polarized droplets to the water layer. It is confirmed that the interaction between the droplets is governed by aerodynamic forces.

Original language	English
Pages (from-to)	712-717
Number of pages	6
Journal	International Journal of Heat and Mass Transfer
Volume	133
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2018.12.160
State	Published - Apr 2019

Keywords

Condensation
Droplet cluster
Electric field
Evaporation
Levitation

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10.1016/j.ijheatmasstransfer.2018.12.160

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abstract = "New experimental results and their physical analysis are presented to clarify the behavior of a relatively stable self-arranged droplet cluster levitating over the locally heated water surface. An external electric field of both opposite directions leads to a significant increase in the rate of a condensational growth of droplets in the cluster. The experimental data are used to estimate a small electrical charge of single droplets and the attraction force of polarized droplets to the water layer. It is confirmed that the interaction between the droplets is governed by aerodynamic forces.",

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author = "Fedorets, {Alexander A.} and Dombrovsky, {Leonid A.} and Edward Bormashenko and Michael Nosonovsky",

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AU - Dombrovsky, Leonid A.

AU - Bormashenko, Edward

AU - Nosonovsky, Michael

PY - 2019/4

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N2 - New experimental results and their physical analysis are presented to clarify the behavior of a relatively stable self-arranged droplet cluster levitating over the locally heated water surface. An external electric field of both opposite directions leads to a significant increase in the rate of a condensational growth of droplets in the cluster. The experimental data are used to estimate a small electrical charge of single droplets and the attraction force of polarized droplets to the water layer. It is confirmed that the interaction between the droplets is governed by aerodynamic forces.

AB - New experimental results and their physical analysis are presented to clarify the behavior of a relatively stable self-arranged droplet cluster levitating over the locally heated water surface. An external electric field of both opposite directions leads to a significant increase in the rate of a condensational growth of droplets in the cluster. The experimental data are used to estimate a small electrical charge of single droplets and the attraction force of polarized droplets to the water layer. It is confirmed that the interaction between the droplets is governed by aerodynamic forces.

KW - Condensation

KW - Droplet cluster

KW - Electric field

KW - Evaporation

KW - Levitation

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JF - International Journal of Heat and Mass Transfer

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On relative contribution of electrostatic and aerodynamic effects to dynamics of a levitating droplet cluster

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Keywords

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