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多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v6.i1.50
11 pages

Numerical Study of Boiling in an Inclined Porous Layer

Mustapha Najjari
Laboratoire d'Etudes des Systemes Thermiques et Energetiques, Cite Riadh, Zirig 6072 Gabes, Tunisia
Sassi Ben Nasrallah
Laboratoire d'Études des Systèmes Thermiques et Énergétiques, Ecole Nationale d'Ingénieurs de Monastir, Monastir 5019 Tunisie

ABSTRACT

A numerical study, employing an enthalpic method, of boiling in porous layer with a discrete heating and crossed by a through flow is presented. The effects of porous medium permeability, inlet flow velocity and inclination angle are presented. It was found that boiling depends strongly on inclination angle. Profile of generated volume vapor and flow structure are obtained for 0° < q < 180°. In the case of opposing vertical flow, mixed convection regime can be detected when evaporated volume reaches it's maximum value. For weak inlet velocity and high permeability, a critical value of q arises corresponding to a maximum value of evaporated volume.


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