期刊
THEORETICAL AND APPLIED MECHANICS LETTERS
卷 7, 期 4, 页码 235-242出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.taml.2017.06.003
关键词
Entropy generation; MHD nanofluid; Thermal radiation; Bejan number; Chemical reaction; Viscous dissipation
类别
资金
- Ministry of Higher Education (MOHE), the Fundamental Research Grant Scheme (FRGS) project [R.J 130000.7809.4F354]
The unsteady mixed convection flow of electrical conducting nanofluid and heat transfer due to a permeable linear stretching sheet with the combined effects of an electric field, magnetic field, thermal radiation, viscous dissipation, and chemical reaction have been investigated. A similarity transformation is used to transform the constitutive equations into a system of nonlinear ordinary differential equations. The resultant system of equations is then solved numerically using implicit finite difference method. The velocity, temperature, concentration, entropy generation, and Bejan number are obtained with the dependence of different emerging parameters examined. It is noticed that the velocity is more sensible with high values of electric field and diminished with a magnetic field. The radiative heat transfer and viscous dissipation enhance the heat conduction in the system. Moreover, the impact of mixed convection parameter and Buoyancy ratio parameter on Bejan number profile has reverse effects. A chemical reaction reduced the nanoparticle concentration for higher values. (c) 2017 The Authors. Published by Elsevier Ltd on behalf of The Chinese Society of Theoretical and Applied Mechanics.
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