A numerical study for transport phenomena of nanoscale gas flow in porous media

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

6 Citations (Scopus)

Abstract

Gas flow in porous media occurs in various engineering devices such as catalytic converters and fuel cells. In order to improve the performance of such devices, it is important to understand transport phenomena in porous media. In porous media with pores as small as a molecular mean free path, molecular motions need to be directly considered instead of treating gas flow as a continuum, and effects of complicated channels need to be taken into account. Therefore, such gas flow was analyzed by using the direct simulation Monte Carlo (DSMC) method, which is the stochastic solution of the Boltzmann equation. Numerical simulations of gas flow driven by pressure gradient without surface reaction were performed to clarify transport phenomena in porous media imitated by arranging nanoscale solid particles randomly. The effects of pressure gradient, diameter of particles and porosity on gas flow rates and permeability of porous media were investigated.

Original languageEnglish
Title of host publication28th International Symposium on Rarefied Gas Dynamics 2012
Pages809-815
Number of pages7
Edition1
DOIs
Publication statusPublished - 2012 Dec 1
Event28th International Symposium on Rarefied Gas Dynamics 2012, RGD 2012 - Zaragoza, Spain
Duration: 2012 Jul 92012 Jul 13

Publication series

NameAIP Conference Proceedings
Number1
Volume1501
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other28th International Symposium on Rarefied Gas Dynamics 2012, RGD 2012
CountrySpain
CityZaragoza
Period12/7/912/7/13

Keywords

  • DSMC method
  • Micro-Nanoscale Flow
  • Porous media

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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