The Effect of Vertical Throughflow on Thermal Instability in a Porous Medium Layer Saturated by a Nanofluid |
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| Authors: | D. A. Nield A. V. Kuznetsov |
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| Affiliation: | 1.Department of Engineering Science,University of Auckland,Auckland,New Zealand;2.Department of Mechanical and Aerospace Engineering,North Carolina State University,Raleigh,USA |
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| Abstract: | The effect of vertical throughflow on the onset of convection in a horizontal layer of a porous medium saturated by a nanofluid is studied analytically. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The dependences of the critical Rayleigh number for the non-oscillatory and oscillatory modes of instability on the thermophoresis and Brownian motion parameters for the cases with and without throughflow are investigated. |
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