Rarefied gas mixtures flows driven by surface absorption

Aldo Frezzotti*, Gian Pietro Ghiroldi, Livio Gibelli

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Steady one-dimensional flows of a binary mixture of hard sphere gases in the presence of an absorbing planar wall are studied by numerical solutions of two coupled Boltzmann equations. The relationship among the problem parameters in steady flow conditions is obtained, paying particular attention to cases where component species have different mole fractions and absorption probabilities. The analogies with a classical condensation problem with unit condensation coefficient are discussed.

Original languageEnglish
Pages (from-to)1731-1738
Number of pages8
Issue number11
Publication statusPublished - 31 May 2012


  • Condensation
  • Mixtures
  • Rarefied gases
  • Surface absorption


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