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The influence of temporal heating modulation on non-isothermal floating droplet dynamics

Published online by Cambridge University Press:  07 October 2022

Alexander Nepomnyashchy  and
Ilya Simanovskii Open the ORCID record for Ilya Simanovskii [Opens in a new window]
Alexander Nepomnyashchy
Affiliation:
Department of Mathematics, Technion – Israel Institute of Technology, 32000 Haifa, Israel
Ilya Simanovskii*
Affiliation:
Department of Mathematics, Technion – Israel Institute of Technology, 32000 Haifa, Israel
*
†Email address for correspondence: yuri11@inter.net.il
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Abstract

The action of temporal heating modulation on Marangoni flows in a droplet on a liquid substrate is investigated. The problem is studied numerically in the framework of long-wave amplitude equations and precursor model. It is shown that temporal modulation can lead to a change of the droplet shape. Specifically, rhombic droplets have been obtained. A modulated cooling from below can lead to periodic or quasiperiodic oscillations or the droplet's decomposition.

JFM classification

Instability: Nonlinear instability

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Type
JFM Papers
Information
Journal of Fluid Mechanics , Volume 949 , 25 October 2022 , A51
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Copyright
© The Author(s), 2022. Published by Cambridge University Press

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References

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