113 固液界面におけるエネルギー輸送(OS1.固体物理/流体物理のマルチフィジックス/マルチスケール解析(4),オーガナイズドセッション)

概要

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Kapitza resistance, the interface thermal resistance between solid and liquid phases, and heat rectifying (or heat diode) effect in a solid-liquid interface are studied by nonequilibrium molecular dynamics simulation. The system consists of two-types of Lennard-Jones (12-6) particles with different mass and strength of interaction. In the steady state, the Fourier-type heat conduction is observed both in solid and liquid phases and the temperature profile decreases linearly in each phase with different gradients. At the interface, a temperature gap is observed. Depending on the heat flux direction, the interface thermal resistance shows a power-law dependence on the interface temperature for liquid-to-solid direction. For solid-to-liquid direction, it has constant value. This asymmetric behavior leads to the thermal rectifying effect.
一般社団法人日本機械学会の論文
2009-10-10