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Journal of Applied & Computational Mathematics

ISSN: 2168-9679

Open Access

Effect of Various Parameters on Velocity, Temperature and Concentration Distriutions Distributions

Abstract

Ayele Tulu and Wubshet Ibrahim

In this paper, the problem of unsteady two-dimensional mixed convection heat, mass transfer flow of nanofluid past a moving wedge embedded in porous media is considered. The effects of nanoparticle volume fraction, thermal radiation, viscous dissipation, chemical reaction, and convective boundary condition are studied. The physical problem is modeled using partial differential equations. The transformed dimensionless system of coupled nonlinear ordinary differential equations is then solved numerically using Spectral Quasi Linearization Method (SQLM). Effects of various parameters on velocity, temperature and concentration distributions as well as skin friction coefficient, local Nusselt number and local Sherwood number are shown using table and graphical representations. The results reveal that the nano fluid velocity and temperature profiles reduce with increasing the values of nanoparticle volume fraction. Greater values of temperature and concentration distributions are observed in the steady flow than unsteady flow. The skin friction coefficient and local Sherwood number are increasing functions while the local Nusselt number is a decreasing function of nanoparticle volume fraction, permeability parameter, Eckert number, Dufour number, and Soret number. The obtained solutions are checked against the previously published results and a very good agreement have been obtained.

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