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Numerical Study of Natural Convection in an Inclined Porous Cavity

作     者:Saad Adjal Sabiha Aklouche-Benouaguef Belkacem Zeghmati 

作者机构:Laboratoire des Transports Polyphasiques et Milieux PoreuxLTPMPALGER16111ALGERIE Laboratoire des Mathématiques et Physique des SystèmesLAMPSPerpignan66860France 

出 版 物:《Fluid Dynamics & Materials Processing》 (流体力学与材料加工(英文))

年 卷 期:2022年第18卷第5期

页      面:1389-1397页

核心收录:

学科分类:07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基  金:This work was done at the LTPMP Laboratory USTHB Algeria 

主  题:Natural convection porous medium finite volumes chaos attractors 

摘      要:Two-dimensional transient laminar natural convection in a square cavity containing a porous medium and inclined at an angle of 30°is investigated *** vertical walls are differentially heated,and the horizontal walls are *** effect of Rayleigh number on heat transfer and on the road to chaos is *** natural heat transfer and the Darcy Brinkman equations are solved by using a finite volume method and a Tri Diagonal Matrix Algorithm(TDMA).The results are obtained for a porosity equal to 0.45,a Darcy number and a Prandtl respectively equal to 10^(-3)and 0.71;they are analyzed in terms of streamlines,isotherms,phase portrait,attractors,and spectra amplitude as a function of the Rayleigh *** is found that,as Rayleigh number increases,the natural convection changes from a steady state to a time-periodic state and finally to a chaotic condition.

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