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多孔介质期刊
影响因子: 1.061 5年影响因子: 1.151 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.v9.i7.60
pages 671-681

Liquid-Vapor Phase-Change and Mixed Convection in a Porous Layer Discretely Heated

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

In this work, we numerically study heat and mass transfers during boiling by mixed convection in a porous layer discretely heated. The porous layer is initially saturated by liquid phase. For the mathematical formulation, an enthalpic method is used. The time-space evolution of thermal and dynamic fields is presented and analyzed in the cases of one and two heat sources. Results concerning the effects of the distance between two heat sources and the length of the heat source are also presented.


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