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arXiv 2006.13080cond-mat.soft
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自航樟脑船产生的螺旋热波

Spiral Thermal Waves Generated by Self-Propelled Camphor Boats

Alla Vilk, Irina Legchenkova, Mark Frenkel, Edward Bormashenko

摘要:

螺旋热表面波所产生的自推进的走廊驱动的物体的报告。螺旋热波注册的溶解和蒸发引导的自推进。在樟脑船自航的情况下,溶液毛细作用伴随着热毛细作用。由于溶液毛细作用引起的表面张力的跃变比由于热毛细作用引起的跃变大得多。所观察到的热效应与樟脑分子在水/蒸汽界面的吸附有关。观察到的螺旋形状像阿基米德螺旋。

英文摘要:

Spiral thermal surface waves arising from self-propulsion of the camphor-driven objects are reported. Spiral thermal waves were registered for the 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 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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