ボルツマン方程式に基づく薄膜気体潤滑特性の解析 II  境界面の適応係数の影響

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  • Analysis of ultra-thin gas film lubrication based on linearized Boltzmann equation. (2nd Report. Influence of accommodation coefficient).

抄録

A generalized lubrication equation valid for both an arbitrary Knudsen number, defined as the ratio of molecular mean free path and spacing, and an arbitrary accommodation coefficient at boundary surfaces, is derived through a linearized Boltzmann equation. Numerical analysis of the equation reveals that, if the accommodation coefficient is less than 1, that is. if not all molecules reflect diffusely, load carrying capacities are smaller than those for diffuse reflection.

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