期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 222, 期 -, 页码 138-150出版社
ELSEVIER
DOI: 10.1016/j.molliq.2016.06.098
关键词
Jeffrey fluid; CuNPs and AgNPs; Thermal radiation; MHD; Free convection flow; Porous medium; Volume fraction; Laplace transform; Exact solution
资金
- Higher Education (MOHE)
- Research Management Centre-UTM [4F713, 4F538, 06H67]
This article studies the influence of copper nanoparticles (CuNPs) and silver nanoparticles (AgNPs) on the unsteady magnetohydrodynamic (MHD) free convection flow of Jeffrey fluid over an oscillating vertical plate embedded in a saturated porous medium. Nanoparticles (CuNPs and AgNPs) are suspended in Kerosene oil which is chosen as a conventional base fluid. Appropriate dimensionless variables are employed to the governing equations and the exact solutions are obtained for velocity and temperature fields using the Laplace transform technique. The results for various controlling parameters for both CuNPs and AgNPs are shown graphically and discussed in details. Expressions for skin friction and Nusselt number are also evaluated and presented in tabular forms. It has been observed that, an increase of volume fraction leads to the enhancement of velocity and temperature distributions. On the other hand, Hartmann number tends to resist the fluid flow due to the Lorentz force. A comparative study of the present results with the results from the earlier works provides an excellent agreement (C) 2016 Elsevier B.V. All rights reserved.
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