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Cherenkov-Like Surface Thermal Waves Emerging from Self-Propulsion of a Liquid Marble.
The Journal of Physical Chemistry B ( IF 2.8 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.jpcb.9b11100 Oleg Gendelman 1 , Mark Frenkel 2 , Bernard P Binks 3 , Edward Bormashenko 2
The Journal of Physical Chemistry B ( IF 2.8 ) Pub Date : 2020-01-21 , DOI: 10.1021/acs.jpcb.9b11100 Oleg Gendelman 1 , Mark Frenkel 2 , Bernard P Binks 3 , Edward Bormashenko 2
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We explore the thermal field related to the self-propulsion of floating liquid marbles filled with aqueous ethanol. Cherenkov-like thermal waves arising from self-propulsion are registered. The opening angle of the thermal field Cherenkov triangle is governed by the inter-relation between the velocity of self-propulsion and the phase velocity of the capillary waves. The self-propulsion is driven by soluto-capillarity accompanied by thermo-capillarity. A semiquantitative analysis of the effect is presented. The empirical selection rule for capillary waves responsible for the mass, momentum, and heat transfer is outlined. The soluto-capillarity leads to much stronger spatial variations of the surface tension than the thermo-capillarity.
中文翻译：
液体大理石自推进产生的Cherenkov样表面热波。
我们探索了与充满乙醇水溶液的漂浮液体大理石的自推进相关的热场。记录了由自推进产生的类似Cherenkov的热波。热场切伦科夫三角形的开度角由自推进速度和毛细管波的相速度之间的相互关系决定。自推进是由溶质毛细作用伴有热毛细作用驱动的。提出了对效果的半定量分析。概述了负责质量，动量和热传递的毛细管波的经验选择规则。溶质毛细作用比热毛细作用导致表面张力的空间变化大得多。
更新日期：2020-01-22
中文翻译：
液体大理石自推进产生的Cherenkov样表面热波。
我们探索了与充满乙醇水溶液的漂浮液体大理石的自推进相关的热场。记录了由自推进产生的类似Cherenkov的热波。热场切伦科夫三角形的开度角由自推进速度和毛细管波的相速度之间的相互关系决定。自推进是由溶质毛细作用伴有热毛细作用驱动的。提出了对效果的半定量分析。概述了负责质量，动量和热传递的毛细管波的经验选择规则。溶质毛细作用比热毛细作用导致表面张力的空间变化大得多。
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