Gravity modulation effect on ferromagnetic convection in a Darcy-Brinkman layer of porous medium

Title

Gravity modulation effect on ferromagnetic convection in a Darcy-Brinkman layer of porous medium

Creator

Thomas N.M.; Maruthamanikandan S.

Description

The influence of a timedependent body force on the threshold of convective instability in a magnetic fluid filled horizontal porous layer is investigated. The gravity modulation effect is treated by employing a perturbation method. The correction Rayleigh number is computedas a function of the modulation frequency, porous and magnetic parameters. It is expounded that, for small and reasonable values of the modulation frequency, gravity modulation and magnetic mechanism have opposing influence on the stability. The study further explicates that, when the gravity modulation frequency increases beyond all bounds, manifestation of the disappearance of the magnetic and porous medium effects on the stability is highly likely. Published under licence by IOP Publishing Ltd.

Source

Journal of Physics: Conference Series, Vol-1139, No. 1

Date

2018-01-01

Publisher

Institute of Physics Publishing

Coverage

Thomas N.M., Department of Sciences and Humanities, Faculty of Engineering, CHRIST (Deemed to Be University), Bengaluru, 560074, India; Maruthamanikandan S., Department of Mathematics, School of Engineering, Presidency University, Itgalpur, Yelahanka, Bangalore, 560064, India

Rights

All Open Access; Gold Open Access

Relation

ISSN: 17426588

Format

Online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1088/1742-6596/1139/1/012022

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85060005572&doi=10.1088%2f1742-6596%2f1139%2f1%2f012022&partnerID=40&md5=d894619e069918c79210fcfd5bb5ad38