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Physics Maths Engineering

Marangoni Bursting: Insight into the Role of the Thermocapillary Effect in an Oil Bath

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Michalina Ślemp,

Michalina Ślemp

Institute of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland


Andrzej Miniewicz

Andrzej Miniewicz

Institute of Advanced Materials, Faculty of Chemistry, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland


  Peer Reviewed

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© attribution CC-BY

  • 0

rating
672 Views

Added on

2024-10-25

Doi: http://dx.doi.org/10.3390/fluids8090255

Related Subjects
Physics
Math
Chemistry
Computer science
Engineering
Earth science
Biology

Abstract

Marangoni bursting describes the spontaneous spread of a droplet of a binary mixture of alcohol/water deposited on a bath of oil, followed by its fast spontaneous fragmentation into a large number of smaller droplets in a self-similar way. Several papers have aimed to describe the physical phenomena underlying this spectacular phenomenon, in which two opposite effects, solutal and thermal Marangoni stresses, play competitive roles. We performed investigations of the Marangoni bursting phenomenon, paying attention to the surface temperature changes during bursting and after it. Fragmentation instabilities were monitored using a thermal camera for various initial alcohol/water compositions and at different stages of the process. We uncovered the role of thermocapillary Marangoni flows within the more viscous oil phase that are responsible for outward and inward shrinking of the periphery circle at the final stage of the phenomenon, enabling a more comprehensive understanding of the thermal Marangoni effect. Simulations of the Marangoni thermocapillary effect in an oil bath by solving coupled Navier–Stokes and heat transport equations using the COMSOL Multiphysics software platform support our experimental observations.

Key Questions

1. What is marangoni bursting and how is it observed in an oil bath?

Marangoni bursting refers to the formation of patterns due to surface tension gradients in a liquid, observed in oil baths as fluid instabilities.

2. What role does the thermocapillary effect play in marangoni bursting?

The thermocapillary effect generates surface tension gradients that cause the fluid to move, initiating marangoni bursting.

3. How can understanding marangoni bursting impact material science and fluid dynamics?

Insights into marangoni bursting can help in fluid manipulation, material processing, and understanding heat and mass transfer.

4. What experimental methods were used to study this phenomenon?

Experimental methods involve high-speed imaging and temperature measurements to observe the effects of the thermocapillary effect on fluid behavior.

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ARTICLE USAGE


Article usage: Oct-2024 to May-2025
Show by month Manuscript Video Summary
2025 May 111 111
2025 April 76 76
2025 March 130 130
2025 February 56 56
2025 January 98 98
2024 December 69 69
2024 November 112 112
2024 October 20 20
Total 672 672
Show by month Manuscript Video Summary
2025 May 111 111
2025 April 76 76
2025 March 130 130
2025 February 56 56
2025 January 98 98
2024 December 69 69
2024 November 112 112
2024 October 20 20
Total 672 672
Related Subjects
Physics
Math
Chemistry
Computer science
Engineering
Earth science
Biology
copyright icon

© attribution CC-BY

  • 0

rating
672 Views

Added on

2024-10-25

Doi: http://dx.doi.org/10.3390/fluids8090255

Related Subjects
Physics
Math
Chemistry
Computer science
Engineering
Earth science
Biology

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