This paper numerically analyses thermo diffusion effects on MHD Casson fluid flow over a stretching sheet with variable thickness. Cattaneo–Christov heat flux model is imposed to predict the effects of thermal relaxation time. Similarity transformation is employed to normalise the governing boundary layer equations. Keller box method is applied to solve the system of equations. The behaviour of emerging parameters, such as Casson parameter ((Formula presented.)), Magnetic parameter ((Formula presented.)), power index ((Formula presented.)), variable viscosity parameter ((Formula presented.)), Prandtl number ((Formula presented.)), Soret number ((Formula presented.)) and Schmidt number ((Formula presented.)) on velocity, temperature and concentration distributions, are discussed and analysed graphically. It is found that temperature profile decreases for large entries of thermal relaxation parameter. The concentration boundary layer thickness increases for large entries of Soret number. © 2018 Informa UK Limited, trading as Taylor &amp; Francis Group.

Rushi Kumar B

Department of Mathematics

School of Advanced Sciences

Vellore Campus

Sakthivel G

Mechanical

School of Mechanical Engineering

Chennai Campus

Gangadhar K

Narasimharao N.S.L.V

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Thermo diffusion effects on MHD Casson fluid flow over non-flatness stretching surface: Keller box method

International Journal of Ambient Energy

An analysis is presented to study the unsteady, two-dimensional nanofluid flow of heat and mass transfer with vanishing nanoparticles flux at the wall in the presence of heat generation or absorption with viscous dissipation. In this analysis, it is assumed as nanoparticle flux is zero on the boundaries. The highly nonlinear differential equations governing the boundary layer flow, heat and mass transfer are numerically solved by spectral relaxation method and validated with MATLAB solver bvp4c. The results are obtained by some values of the physical parameters, namely, the Brownian motion parameter, the thermophoresis parameter, unsteadiness parameter, Eckert number, heat generation or absorption parameter, Prandtl number and Lewis number. Physical features for all relevant parameters on the dimensionless velocity, temperature, nanoparticles volume fraction and heat and mass transfer rates are analysed and discussed. The thermal boundary layer thickness increases with an increase in the thermophoretic parameter. The nanoparticle volume fraction profile significantly descends from the surface with an increase in Brownian motion parameter. © 2018, © 2018 Informa UK Limited, trading as Taylor &amp; Francis Group.

Unsteady free convective boundary layer flow of a nanofluid past a stretching surface using a spectral relaxation method

Fulltext

Engineering Science and Technology, an International Journal

Heat and mass transfer in magnetohydrodynamic Casson fluid over an exponentially permeable stretching surface

Applied Mathematics and Mechanics

Hydromagnetic thin film flow of Casson fluid in non-Darcy porous medium with Joule dissipation and Navier’s partial slip

Journal of Engineering Thermophysics

Numerical study of the onset of chemical reaction and heat source on dissipative MHD stagnation point flow of Casson nanofluid over a nonlinear stretching sheet with velocity slip and convective boundary conditions

International Journal of Heat and Mass Transfer

Thermally stratified stretching flow with Cattaneo–Christov heat flux

Journal	International Journal of Ambient Energy
Publisher	Informa UK Limited
ISSN	0143-0750
Open Access	0