Journal of Statistical Physics

, Volume 44, Issue 5, pp 865–878

On Knudsen flows within thin tubes

  • Hans Babovsky

DOI: 10.1007/BF01011911

Cite this article as:
Babovsky, H. J Stat Phys (1986) 44: 865. doi:10.1007/BF01011911


The dynamics of a test particle in an infinite tube is investigated. It is proven that the evolution tends to that of a diffusion process as the radius of the tube decreases to zero. This justifies the hypotheses underlying an experiment of Clausing (1930).

Key words

Knudsen flowinfinite tubediffusion approximation

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • Hans Babovsky
    • 1
  1. 1.Department of MathematicsUniversity of KaiserslauternKaiserslautern