刚性转子的气致摩擦和扩散
Gas-induced friction and diffusion of rigid rotors
摘要：
本文导出了稀薄气体中任意凸刚体转平移动力学的Boltzmann方程。作为一个极限情况，它产生的福克-普朗克方程占摩擦，扩散，和非保守漂移力和扭矩。我们提供了旋转平移摩擦和扩散张量镜面反射和漫反射关闭粒子与球形，圆柱形和长方体形状，并表明，该理论描述热化，电泳，和逆马格努斯效应在自由分子制度。
英文摘要：
We derive the Boltzmann equation for the rotranslational dynamics of an arbitrary convex rigid body in a rarefied gas. It yields as a limiting case the Fokker-Planck equation accounting for friction, diffusion, and nonconservative drift forces and torques. We provide the rotranslational friction and diffusion tensors for specular and diffuse reflection off particles with spherical, cylindrical, and cuboidal shape, and show that the theory describes thermalization, photophoresis, and the inverse Magnus effect in the free molecular regime.
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