Double Diffusive Natural Convection in a Square Cavity Filled with a Porous Media and a Power Law Fluid Separated by a Wavy Interface

被引：10

作者：

Kolsi, Lioua ^{[1
]}

Hussain, Shafqat ^{[2
]}

Ghachem, Kaouther ^{[3
]}

Jamal, Muhammad ^{[4
]}

Maatki, Chemseddine ^{[5
,6
]}

机构：

[1] Univ Hail, Coll Engn, Mech Engn Dept, Hail 81451, Saudi Arabia

[2] Capital Univ Sci & Technol, Dept Math, Islamabad 44000, Pakistan

[3] Princess Nourah Bint Abdulrahman Univ, Coll Engn, Dept Ind Engn & Syst, Riyadh 11671, Saudi Arabia

[4] PMAS Arid Agr Univ, Dept Math & Stat, Rawalpindi 46300, Pakistan

[5] Imam Mohammad Ibn Saud Islamic Univ, Coll Engn, Dept Mech Engn, Riyadh 11432, Saudi Arabia

[6] Univ Monastir, Lab Metrol & Energy Syst, Monastir 5000, Tunisia

来源：

MATHEMATICS | 2022年 / 10卷 / 07期

关键词：

non-Newtonian fluid; layers; double diffusive; natural convection; FEM; NON-NEWTONIAN FLUID; ENTROPY GENERATION; THERMOSOLUTAL CONVECTION; SIMULATION; NANOFLUID; ENCLOSURE; HEAT; FLOW; TEMPERATURE; CHANNEL;

D O I：

10.3390/math10071060

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

This study deals with the influence of a wavy interface separating two layers filled with power law fluid and porous media, respectively. The governing equations are solved using the Finite Element Method (FEM) and the numerical model is validated by comparing with experimental findings. The parameters governing the studied configuration are varied as: Rayleigh number (10(3) <= Ra <= 10(6)), power law index (0.6 <= n <= 1.4), Darcy number (10(-2) <= Da <= 10(-6)), buoyancy ratio (0.1 <= N <= 10) and Lewis number (1 <= Le <= 10). It is inferred that the temperature gradient increases by augmenting the Rayleigh number, as the flow is observed from the vertical to horizontal direction in both layers. Constant enhancement in the heat and mass transfer is also observed by enriching the buoyancy effect. Moreover, the average Nusselt and Sherwood numbers decline by increasing the width of the porous layer.

引用

页数：18

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