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Journal of Porous Media
Fator do impacto: 1.752 FI de cinco anos: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN Imprimir: 1091-028X
ISSN On-line: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v7.i1.20
10 pages

Effect of Suspended Particles on Couple-Stress Fluid Heated and Soluted from Below in Porous Medium

Sunil
Department of Mathematics, National Institute of Technology, Hamirpur, (H.P.) 177005, India
R. C. Sharma
Department of Mathematics, Himachal Pradesh University, Summer Hill, Shimla 171 005, India
Rajender Singh Chandel
Department of Mathematics, Government Degree College, Palampur, (H.P.) 177 061, India

RESUMO

A layer of a couple-stress fluid permeated with suspended particles, heated and soluted from below in a porous medium, is considered. For the case of stationary convection, the stable solute gradient and couple-stress have stabilizing effects on the onset of convection, whereas the suspended particles and medium permeability have destabilizing effects on the couple-stress fluid permeated with suspended particles, heated and soluted from below in a porous medium. Graphs have been plotted by giving numerical values to the parameters, to depict the stability characteristics. The stable solute gradient is found to introduce oscillatory modes in the system, which were nonexistent in its absence. A sufficient condition for the nonexistence of overstability is obtained.


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