Influence of Gravitational Modulation on Natural Convection in a Horizontal Porous Annulus-Reference-Cited by-同舟云学术

Influence of Gravitational Modulation on Natural Convection in a Horizontal Porous Annulus

Published:2016-10-18 Issue:2 Volume:139 Page:
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Belabid Jabrane¹,Allali Karam²

Affiliation:

1. Mohammadia School of Engineers, Mohammed V University in Rabat, Agdal Rabat, Morocco e-mail:

2. Laboratory of Mathematics and Applications, Faculty of Sciences and Technologies, University Hassan II of Casablanca, Mohammedia, Morocco e-mail:

Abstract

The influence of gravitational modulation on natural convection in a horizontal porous annulus is investigated in this paper. The mathematical model describing the phenomenon consists of the heat equation coupled by the hydrodynamics equations under the Boussinesq approximation. The derived system of equations with the stream function–temperature formulation is obtained and solved numerically using the alternating direction implicit method. It is shown that the convective stability of the fluid can be gained for small amplitudes of the vibration, while it will be lost for large ones. It was also observed that increasing the frequency has a destabilizing effect.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/doi/10.1115/1.4034795/6214302/ht_139_02_022502.pdf

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