Janja Kramer Stajnko (Author), Renata Jecl (Author), Leopold Škerget (Author)

Abstract

The main purpose of this paper is to present a boundary domain integral method(BDIM) for the solution of natural convection in porous media driven by combining thermal and solutal buoyancy forces. The Brinkman extension of the classical Darcy equation is used for the momentum conservation equation. The numerical scheme was tested on a natural convection problem within a square porous cavity, where different temperature and concentration values are applied on the vertical walls, while the horizontal walls are adiabatic and impermeable. The results for different governing parameters (Rayleigh number, Darcy number, buoyancy ratio and Lewis number) are presented and compared withpublished work. There is a good agreement between those results obtained using the presented numerical scheme and reported studies using other numerical methods.

Keywords

naravana konvekcija;porozni medij;hitrostno vrtinčna formulacija;Brinkman Darcy formulacija;robno območna integralska metoda;double diffusive natural convection;porous medium;velocity-vorticity formulation;Brinkman extended Darcy formulation;boundary domain integrated method;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 536.25+532.7:519.61/.64
COBISS: 11816982 Link will open in a new window
ISSN: 0955-7997
Views: 1532
Downloads: 76
Average score: 0 (0 votes)
Metadata: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Other data

Secondary language: English
Secondary keywords: naravana konvekcija;porozni medij;hitrostno vrtinčna formulacija;Brinkman Darcy formulacija;robno območna integralska metoda;
URN: URN:SI:UM:
Pages: str. 897-905
Volume: ǂVol. ǂ31
Issue: ǂiss. ǂ11
Chronology: 2007
ID: 8717420