Leidenfrost effect on strings
Artamonov A. V.1, Dmitriev A. S.1, Makarov P. G.1
1National Research University «Moscow Power Engineering Institute», Moscow, Russia
Email: mtartsss@gmail.com, asdmitriev@mail.ru, makarovpg@mpei.ru

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New manifestations of the Leidenfrost effect (levitation of limited volumes of liquid over an overheated surface) on smooth and morphologically complex thin metal strings are described for the first time. Various dynamic modes of Leidenfrost levitation are presented, including a new one - a combined thermohydrodynamic mechanism of levitation as a sum of the effects of a viscous vapor flow under a drop and a convective flow around a drop with a mixture of vapor + air due to natural convection. Keywords: Leidenfrost effect, thin strings, surface morphology, levitation mechanism, steam layer. DOI: 10.61011/TPL.2023.09.56711.19629
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