Thermal instability of oldroydian visco-elastic nanofluid in a porous medium for more realistic boundary conditions

被引：0

作者：

Chand R. ^{[1
]}

Kango S.K. ^{[2
]}

机构：

[1] Department of Mathematics, Government Arya Degree College Nurpur, Himachal Pradesh

[2] Department of Mathematics, NSBM Government College Hamirpur, Himachal Pradesh

来源：

Special Topics and Reviews in Porous Media | 2021年 / 12卷 / 03期

关键词：

Brinkman–Darcy number; Brownian motion; Oldroydian visco-elastic nanofluid; Perturbation method; Rayleigh number;

D O I：

10.1615/SPECIALTOPICSREVPOROUSMEDIA.2020029601

中图分类号：

学科分类号：

摘要：

The thermal instability of Oldroydian visco-elastic nanofluid in a porous medium with more realistic boundary conditions is investigated. The Brinkman model, used for the porous medium, incorporates the effect of Brownian diffusion and thermophoresis. The eigen value problem is solved by employing the Galerkin weighted residuals method. The influence of the Lewis number, Brinkman–Darcy number, nanoparticle Rayleigh number, modified diffusivity ratio, and porosity parameter on the stationary convection are studied analytically. The Lewis number, modified diffusivity ratio, and nanoparticles Rayleigh number destabilize, and the Brinkman–Darcy number and porosity parameter stabilize the stationary convection. © 2021 by Begell House, Inc. www.begellhouse.com

引用

页码：11 / 20

页数：9

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