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ORIGINAL PAPER
Unsteady Three-Dimensional MHD Nanofluid Flow Over a Stretching Sheet with Variable Wall Thickness and Slip Effects
1
Department of Mathematics, S.V. University, Tirupati-, 517502, A.P, India
Online publication date: 2019-08-09
Publication date: 2019-09-01
International Journal of Applied Mechanics and Engineering 2019;24(3):709-724
KEYWORDS
unsteady flowmagnetic fieldBuongiorno’s modelvariable wall thickness sheetvelocitythermal and solutal slip
ABSTRACT
The stretching sheets with variable thickness may occur in engineering applications more frequently than a flat sheet. Due to its various applications, in the present analysis we considered a three dimensional unsteady MHD nanofluid flow over a stretching sheet with a variable wall thickness in a porous medium. The effects of radiation, viscous dissipation and slip boundary conditions are considered. Buongiorno’s model is incorporated to study the combined effects of thermophoresis and Brownian motion. The dimensionless governing equations are solved by using MATLAB bvp4c package. The impact of various important flow parameters is presented and analysed through graphs and tables. It is interesting to note that all the three boundary layer thicknesses are diminished by slip parameters. Further, the unsteady parameter decreases the hydromagnetic boundary layer thickness.
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