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Second Thermal and Fluids Engineering  Conference

ISSN: 2379-1748
ISBN: 978-1-56700-430-4

LEIDENFROST EFFECT, SIMULATION WITH MOLECULAR DYNAMICS

Mykola Isaiev
Faculté des Sciences et Technologies, LEMTA - Université de Lorraine - CNRS UMR 7563, 2, Avenue de la Foret de Haye, TSA 60604,54518 Vandoeuvre les Nancy cedex, France; Faculty of Physics, Taras Shevchenko National University of Kyiv, 64/13, Volodymyrska St.,01601 Kyiv, Ukraine

Michel Gradeck
Faculté des Sciences et Technologies, LEMTA - Université de Lorraine - CNRS UMR 7563, 2, Avenue de la Foret de Haye, TSA 60604,54518 Vandoeuvre les Nancy cedex, France

Konstantinos Termentzidis
Faculté des Sciences et Technologies, LEMTA – Université de Lorraine - CNRS UMR 7563, 2, Avenue de la Foret de Haye, TSA 60604,54518 Vandoeuvre les Nancy cedex, France

Abstract

In this paper the interaction of a cold liquid slab with a hot substrate is discussed. With molecular dynamics simulation, we study the interaction of a water slab on the crystalline silicon wafer with (1 0 0) orientation. To avoid the infinite elevation of the water film, a homogeneous external gravity-like field was applied. This external field stabilizes the system and like this we achieve the formation of a stable vapor film, so the Leidenfrost effect is observed with means of molecular dynamics simulations. The comparison of the system behavior with and without the external gravity field is made. The molecular dynamics snapshots of the systems configuration are presented.

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