Journal
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Volume 24, Issue 15, Pages 1231-1238Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2016.1232454
Keywords
Mixed convection; variable wall temperature; shape effects; interfacial layer; nanofluid; analytical solutions
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In this article, two-dimensional heat transfer mixed convection flow of a nanofluid over a vertical stretching permeable sheet is investigated. Simultaneous effects of spherical and nonspherical shapes of nanoparticles with different sizes in nanolayer are taken into account. The human engineered fluids with Nimonic 80a metal nanoparticles are used as base fluids. Analytic solutions of velocity and temperature under the influence of the Buoyancy force (assists or opposes) are first obtained and then the role of pertinent parameters, such as volume friction, mixed convection, porosity, stretching, power law index, and temperature index, is illustrated through graphs and tables. In addition, correlation of Nusselt number and skin friction corresponding to active parameters are also analyzed.
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