Comment on "Microscopic kinetic theory of the mean collision force of a particle moving in rarefied gases".

Khrapak, Sergey · Phys Rev E · 2023

editorial · Level V

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Abstract

In a recent paper [T. Wei et al., Phys. Rev. E 106, 034101 (2022)2470-004510.1103/PhysRevE.106.034101] a derivation of the resistance force acting on a small classical particle moving through a rarefied gas has been presented. Unfortunately, the obtained expression is inaccurate. The purpose of this Comment is to provide the accurate expression and to discuss several related aspects.