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.