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Special Topics & Reviews in Porous Media: An International Journal

Publication de 4  numéros par an

ISSN Imprimer: 2151-4798

ISSN En ligne: 2151-562X

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 1.1 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 1.5 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.5 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00018 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.42 SJR: 0.217 SNIP: 0.362 CiteScore™:: 2.3 H-Index: 19

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THERMAL INSTABILITY IN A BRINKMAN POROUS MEDIUM SATURATED BY NANOFLUID WITH NO NANOPARTICLE FLUX ON BOUNDARIES

Volume 5, Numéro 4, 2014, pp. 277-286
DOI: 10.1615/SpecialTopicsRevPorousMedia.v5.i4.10
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RÉSUMÉ

Thermal instability in a horizontal layer of nanofluid in a porous medium is investigated. Boundary conditions for nanoparticles volume fraction are taken to be zero flux. The Darcy-Brinkman model is used for the momentum equation. A linear stability analysis based on the normal mode technique is used to study the onset of instabilities of the nanofluid layer confined between two free-free boundaries. The thermal Rayleigh-Darcy number on the onset of stationary convection has been derived by using the Galerkin weighted residuals method. Oscillatory convection has been ruled out, because of the absence of opposing buoyancy forces. The influence of the Brinkman-Darcy number (10−3 − 10−1), porosity (10−3 − 10−1), Lewis number (102 − 103), modified diffusivity ratio (1 − 10), and nanoparticles Rayleigh number [(−102) − 10] on the stationary convection are investigated both analytically and graphically. It has been found that in case of stationary convection Brinkman-Darcy number, the Lewis number and modified diffusivity ratio have a stabilizing effect while the porosity has a destabilizing effect on the fluid layer.

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