A kinetic model for collisional effects in dense adsorbed gas layers

Paolo Barbante*, Aldo Frezzotti, Livio Gibelli, Domenico Giordano

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of adsorbed gas layers on gas-surface interaction is investigated by a kinetic model based on the Enskog-Vlasov equation. The onset of collisional effects in the gas layer is studied by equilibrium simulations. The effects of adsorption on the gas-wall friction forces is investigated in a simple Couette flow geometry. It is shown that gas adsorption might reduce tangential stresses, as indicated by molecular dynamics based studies. Finally an example is produced in which the two-dimensional Enskog-Vlasov equation is solved to simulate the formation of a liquid film on the walls of a planar channel.

Original languageEnglish
Title of host publication27th International Symposium on Rarefied Gas Dynamics - 2010, RGD27
Pages458-463
Number of pages6
Volume1333
EditionPART 1
DOIs
Publication statusPublished - 18 Oct 2011
Event27th International Symposium on Rarefied Gas Dynamics, RGD27 - Pacific Grove, CA, United States
Duration: 10 Jul 201115 Jul 2011

Conference

Conference27th International Symposium on Rarefied Gas Dynamics, RGD27
Country/TerritoryUnited States
CityPacific Grove, CA
Period10/07/1115/07/11

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