Triple-Diffusive Mixed Convection in a Porous Open Cavity

Mehdi Ghalambaz, Faramarz Moattar, Abdolreza Karbassi, Mikhail A. Sheremet, Ioan Pop

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The triple-diffusive mixed convection heat and mass transfer of a mixture is analyzed in an enclosure filled with a Darcy porous medium. The mass transfer buoyancy effects due to concentration gradients of the dispersed components (pollutant components) are taken into account using the Boussinesq approximation model. The governing equations are transformed into a non-dimensional form, and six groups of non-dimensional parameters, including Darcy–Rayleigh number, Peclet number, two Lewis numbers for pollutant components 1 and 2 and two buoyancy ratio parameters for pollutant components 1 and 2, are introduced. The governing equations are numerically solved for various combinations of non-dimensional parameters using the finite element method. The effect of each group of non-dimensional parameters on the pollutant distribution and the heat transfer in the cavity is discussed. The results indicate that the presence of one pollutant component can significantly affect the pollutant distribution of the other component. When the Lewis number of a pollutant component is small, the increase in the bouncy ratio parameter of the proposed component always increases the Nusselt and Sherwood numbers in the cavity.

Original languageEnglish
Pages (from-to)473-491
Number of pages19
JournalTransport in Porous Media
Volume116
Issue number2
DOIs
Publication statusPublished - 1 Jan 2017

Fingerprint

Mixed convection
Buoyancy
Mass transfer
Heat transfer
Peclet number
Enclosures
Porous materials
Finite element method

Keywords

  • Environment
  • Mass transfer
  • Pollutant diffusion
  • Three-component mixture

ASJC Scopus subject areas

  • Catalysis
  • Chemical Engineering(all)

Cite this

Triple-Diffusive Mixed Convection in a Porous Open Cavity. / Ghalambaz, Mehdi; Moattar, Faramarz; Karbassi, Abdolreza; Sheremet, Mikhail A.; Pop, Ioan.

In: Transport in Porous Media, Vol. 116, No. 2, 01.01.2017, p. 473-491.

Research output: Contribution to journalArticle

Ghalambaz, Mehdi ; Moattar, Faramarz ; Karbassi, Abdolreza ; Sheremet, Mikhail A. ; Pop, Ioan. / Triple-Diffusive Mixed Convection in a Porous Open Cavity. In: Transport in Porous Media. 2017 ; Vol. 116, No. 2. pp. 473-491.
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