AM06-20-004 固体表面での反射気体分子の境界条件に対する分子動力学法に基づく考察(分子スケールの流れ(1),一般講演)

概要

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The characteristics of the reflected N_2 molecule at a platinum surface analyzed by the molecular dynamics simulation are discussed to construct the boundary condition for the reflected molecule at the wall surface. It is found that the global velocity distribution of the reflected molecule is well described by the Maxwell-type distribution function consisting of specular and diffuse reflections if we take a proper accommodation coefficient in each direction of the space coordinates. The velocity distribution at the reflected state is also shown for an impinging molecule with a given velocity. This is compared with the CLL boundary condition and a phenomenological modified CLL reflection condition is proposed.
日本流体力学会の論文
2006-09-05