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Gas-induced friction and diffusion of rigid rotors

Lukas Martinetz, Klaus Hornberger, and Benjamin A. Stickler
Phys. Rev. E 97, 052112 – Published 11 May 2018; Erratum Phys. Rev. E 107, 039901 (2023)

Abstract

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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  • Received 21 February 2018

DOI:https://doi.org/10.1103/PhysRevE.97.052112

©2018 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Erratum

Erratum: Gas-induced friction and diffusion of rigid rotors [Phys. Rev. E 97, 052112 (2018)]

Lukas Martinetz, Klaus Hornberger, and Benjamin A. Stickler
Phys. Rev. E 107, 039901 (2023)

Authors & Affiliations

Lukas Martinetz, Klaus Hornberger, and Benjamin A. Stickler

  • Faculty of Physics, University of Duisburg-Essen, Lotharstraße 1, 47048 Duisburg, Germany

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Issue

Vol. 97, Iss. 5 — May 2018

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