Spiral thermal waves generated by self-propelled camphor boats

Alla Vilk; Irina Legchenkova; Mark Frenkel; Edward Bormashenko

doi:10.3390/condmat5030051

Spiral thermal waves generated by self-propelled camphor boats

Alla Vilk, Irina Legchenkova, Mark Frenkel, Edward Bormashenko

Department of Chemical Engineering

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

3 Scopus citations

Abstract

Spiral thermal surface waves arising from self-propulsion of the camphor-driven objects are reported. Spiral thermal waves were registered for dissolution and evaporation-guided self-propulsion. Soluto-capillarity is accompanied by thermo-capillarity under self-propulsion of camphor boats. The jump in the surface tension due to the soluto-capillarity is much larger than that due to the thermo-capillarity. The spiral patterns inherent for the surface thermal waves are imposed by the self-rotational motion of camphor grains. The observed thermal effect is related to the adsorption of camphor molecules at the water/vapor interface. The observed spirals are shaped as Archimedean ones.

Original language	English
Article number	51
Pages (from-to)	1-8
Number of pages	8
Journal	Condensed Matter
Volume	5
Issue number	3
DOIs	https://doi.org/10.3390/condmat5030051
State	Published - Sep 2020

Keywords

Camphor grain
Self-propulsion
Soluto-capillarity
Thermal waves
Thermo-capillarity

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10.3390/condmat5030051

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abstract = "Spiral thermal surface waves arising from self-propulsion of the camphor-driven objects are reported. Spiral thermal waves were registered for dissolution and evaporation-guided self-propulsion. Soluto-capillarity is accompanied by thermo-capillarity under self-propulsion of camphor boats. The jump in the surface tension due to the soluto-capillarity is much larger than that due to the thermo-capillarity. The spiral patterns inherent for the surface thermal waves are imposed by the self-rotational motion of camphor grains. The observed thermal effect is related to the adsorption of camphor molecules at the water/vapor interface. The observed spirals are shaped as Archimedean ones.",

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AU - Vilk, Alla

AU - Legchenkova, Irina

AU - Frenkel, Mark

AU - Bormashenko, Edward

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Y1 - 2020/9

N2 - Spiral thermal surface waves arising from self-propulsion of the camphor-driven objects are reported. Spiral thermal waves were registered for dissolution and evaporation-guided self-propulsion. Soluto-capillarity is accompanied by thermo-capillarity under self-propulsion of camphor boats. The jump in the surface tension due to the soluto-capillarity is much larger than that due to the thermo-capillarity. The spiral patterns inherent for the surface thermal waves are imposed by the self-rotational motion of camphor grains. The observed thermal effect is related to the adsorption of camphor molecules at the water/vapor interface. The observed spirals are shaped as Archimedean ones.

AB - Spiral thermal surface waves arising from self-propulsion of the camphor-driven objects are reported. Spiral thermal waves were registered for dissolution and evaporation-guided self-propulsion. Soluto-capillarity is accompanied by thermo-capillarity under self-propulsion of camphor boats. The jump in the surface tension due to the soluto-capillarity is much larger than that due to the thermo-capillarity. The spiral patterns inherent for the surface thermal waves are imposed by the self-rotational motion of camphor grains. The observed thermal effect is related to the adsorption of camphor molecules at the water/vapor interface. The observed spirals are shaped as Archimedean ones.

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Spiral thermal waves generated by self-propelled camphor boats

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