Interaction of radiation with double-diffusive natural convection in a three-dimensional cubic cavity filled with a non-gray gas mixture in cooperating cases

被引：17

作者：

Cherifi, M. ^{[1
]}

Laouar-Meftah, S. ^{[1
]}

Benbrik, A. ^{[1
]}

Lemonnier, D. ^{[2
]}

Saury, D. ^{[2
]}

机构：

[1] MHamed Bougara Univ, Fac Hydrocarbons & Chem, Boumerdes, Algeria

[2] Univ Poitiers, CNRS ENSMA, Inst Pprime, Futuroscope, France

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2016年 / 69卷 / 05期

关键词：

DIFFERENTIALLY-HEATED CAVITY; K-DISTRIBUTION CORRELATIONS; NUMERICAL-SIMULATION; COUPLED RADIATION; SURFACE RADIATION; ENCLOSURE; FLOW; MODEL;

D O I：

10.1080/10407782.2015.1090233

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A three-dimensional (3D) numerical study has been performed to investigate the effects of non-gray gas radiation on double-diffusive natural convection in a cubic enclosure filled with either air-H2O or air-CO2 mixtures in cooperating situations. Gas radiation was taken into account by the discrete ordinates method (DOM) associated with the spectral line weighted-sum-of-gray-gases (SLW) spectral model. Results obtained for two average concentrations of H2O and CO2 (10% and 20%) show that radiation modifies the temperature and concentration structures by creating oblique stratifications. The heat transfer rate is decreased, whereas mass transfer is not much modified. In addition, a comparison between 2D and 3D results is presented.

引用

页码：479 / 496

页数：18

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