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Research Article Open access CC BY 3.0

MHD Buoyancy Flows of Cu, Al2O3 and TiO2nanofluid Near Stagnation-point on a Vertical Plate with Heat Generation

Ifsana Karim, Md. Sirajul Islam, Md. Shakhaoath Khan

Physical Science International Journal · pp. 754–767 · Published 25 Mar 2014

10.9734/PSIJ/2014/9074

Abstract

Magnetohydrodynamic mixed convection boundary layer flow of a nanofluid near the stagnation-point on a vertical plate with heat generation is investigated for both assisting and opposing flows are well thought-out. Different types of nanoparticles as copper (Cu), alumina (Al2O3) and titania (TiO2) considering here. Using similarity approach the system of partial differential equations is transformed into ordinary differential equations which strongly depend on the magnetic parameter (M), buoyancy parameter (λ), Prandtl number (Pr), heat generation parameter (Q) and volume fraction parameter (φ). The coupled differential equations are numerically simulated using the Nactsheim-Swigert shooting technique together with Runge-Kutta six order iteration schemes. The velocity and temperature profiles are discussed and presented graphically. The comparison for dimensionless skin friction coefficient and local Nusselt number with previously published literature also take into account for the accuracy of the present analysis.  

MHD mixed convection nanofluid heat generation stagnation-point flow

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