Thermosolutal convection of a nanofluid in ∧-shaped cavity saturated by a porous medium
International Journal of Numerical Methods for Heat & Fluid Flow
ISSN: 0961-5539
Article publication date: 4 February 2021
Issue publication date: 1 November 2021
Abstract
Purpose
The purpose of this study is to simulate the thermo-solutal convection resulting from a circular cylinder hanging in a rod inside a ∧-shaped cavity.
Design/methodology/approach
The two dimensional ∧-shaped cavity is filled by Al2O3-water nanofluid and saturated by three different levels of heterogeneous porous media. An incompressible smoothed particle hydrodynamics (ISPH) method is adopted to solve the governing equations of the present problem. The present simulations have been performed for the alteration of buoyancy ratio
Findings
The performed numerical simulations indicated the importance of embedded shapes on the distributions of temperature, concentration and velocity fields inside ∧-shaped cavity. Increasing buoyancy ratio parameter enhances thermo-solutal convection and nanofluid velocity. Adiabatic conditions of the vertical-walls of ∧-shaped cavity augment the distributions of the temperature and concentration. Regardless the Darcy parameter, a homogeneous porous medium gives the lowest values of a nanofluid velocity.
Originality/value
ISPH method is used to simulate thermo-solutal convection of a nanofluid inside a novel ∧-shaped cavity containing a novel embedded shape and heterogeneous porous media.
Keywords
Acknowledgements
The authors would like to extend their appreciations to the Deanship of Scientific Research at King Khalid University, Abha, Saudi Arabia, for funding this work through the General Research Project under grant number (G.R.P. 3/42).
Citation
Aly, A.M. and Raizah, Z. (2021), "Thermosolutal convection of a nanofluid in ∧-shaped cavity saturated by a porous medium", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 31 No. 11, pp. 3413-3435. https://doi.org/10.1108/HFF-09-2020-0603
Publisher
:Emerald Publishing Limited
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