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Effect of thermal dispersion on transient natural convection in a wavy-walled porous cavity filled with a nanofluid: Tiwari and Das' nanofluid model


Citation

Sheremet, Mikhail Alexandrovich and Pop, Ioan and Bachok @ Lati, Norfifah (2016) Effect of thermal dispersion on transient natural convection in a wavy-walled porous cavity filled with a nanofluid: Tiwari and Das' nanofluid model. International Journal of Heat and Mass Transfer, 92. pp. 1053-1060. ISSN 0017-9310; ESSN: 1879-2189

Abstract

Transient natural convection in a porous wavy-walled cavity filled with a nanofluid has been studied numerically. The domain of interest is bounded by vertical flat and horizontal wavy walls having constant temperatures. The unsteady governing equations formulated in dimensionless stream function and temperature, within the Darcy–Boussinesq approximation and the mathematical nanofluid model proposed by Tiwari and Das in the presence of thermal dispersion with corresponding initial and boundary conditions have been solved numerically using an iterative implicit finite-difference method. The main objective is to investigate the effect of the dimensionless time, thermal dispersion parameter and solid volume fraction parameter of nanoparticles on the fluid flow and heat transfer characteristics. Results are presented in the form of streamlines, isotherms and distributions of the average Nusselt number at the bottom wavy wall.


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Additional Metadata

Item Type: Article
Subject: Porous cavity; Wavy wall; Thermal dispersion; Nanofluid; Numerical results
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1016/j.ijheatmasstransfer.2015.09.071
Publisher: Elsevier
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 27 Feb 2018 03:16
Last Modified: 27 Feb 2018 03:16
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.ijheatmasstransfer.2015.09.071
URI: http://psasir.upm.edu.my/id/eprint/54059
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