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International Heat Transfer Conference 13

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

SOLID-LIQUID BOUNDARY RESISTANCE: A MOLECULAR DYNAMICS STUDY ON INTERMOLECULAR ENERGY TRANSFER AT SOLID-LIQUID INTERFACES

D. Torii
Graduate School of Engineering, Tohoku University, Sendai, Japan

Taku Ohara
Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan

K. Ishida
Graduate School of Engineering, Tohoku University, Sendai, Japan

DOI: 10.1615/IHTC13.p2.80
9 pages

Abstract

Molecular dynamics simulation has been performed to clarify the mechanism and characteristics of the energy transfer at the solid-liquid interfaces. The system consists of a pair of parallel solid walls and a liquid film in between. The solid walls have different temperatures in order to generate a constant thermal energy flux, and three kinds of crystal planes that contact the liquid are examined. By investigating the intermolecular energy transfer at the solid-liquid interfaces, the characteristics of the energy transfer are found to be greatly influenced by the molecular configuration at the surface of the solid walls and the mechanism of the energy transfer is clarified in relationship to the molecular-scale roughness of the solid surface.

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Measurement of fluid temperature with an arrangement of three thermocouples