Journal
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
Volume 46, Issue -, Pages 37-45Publisher
ELSEVIER
DOI: 10.1016/j.euromechflu.2014.02.005
Keywords
Nanofluid; Horizontal channel; Bioconvection; Linear boundary conditions
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Funding
- Program for New Century Excellent Talents in University of China [NCET12-0347]
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In this paper, an analysis is made for the fully developed mixed bioconvection flow in a horizontal channel filled with a nanofluid that contains both nanoparticles and gyrotactic microorganisms. The passively controlled nanofluid model proposed by Kuznetsov and Nield (2013) is then introduced for modeling this flow problem, which is found to be more physically realistic than previous nanofluid models. Analytical approximations with high precision are obtained by the improved homotopy analysis technique for complicated boundary conditions. Besides, the influences of various physical parameters on the distributions of temperature, the nanoparticle volume fraction, as well as the density of motile microorganisms are investigated in detail. (C) 2014 Elsevier Masson SAS. All rights reserved.
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