Throughflow and quadratic drag effects on the onset of convection in a Forchheimer-extended Darcy porous medium layer saturated by a nanofluid

Dhananjay Yadav, Jinho Lee, Hyung Hee Cho

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9 Citations (Scopus)

Abstract

In this paper, thermal instability in a horizontal nanofluid-saturated porous layer with vertical through flow and quadratic drag is investigated. The important effects of Brownian motion and thermophoresis are included in the model of nanofluid, while for porous medium the modified Forchheimer-extended Darcy model is employed. The criterion for both stationary and oscillatory convection is derived analytically with and without through flow and quadratic drag effects. It is found that oscillatory convection is possible only for the case of a bottom-heavy nanoparticle distribution.

Original languageEnglish
Pages (from-to)2299-2309
Number of pages11
JournalJournal of the Brazilian Society of Mechanical Sciences and Engineering
Volume38
Issue number8
DOIs
Publication statusPublished - 2016 Dec 1

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Drag
Porous materials
Thermophoresis
Brownian movement
Nanoparticles
Convection
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

Cite this

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