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2 International Journal of Applied Mechanics and Engineering

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Slow extensional flow past a non-homogeneous porous spherical shell

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Rajvanshi S. C. , Wasu S.

International Journal of Applied Mechanics and Engineering

2013

tom Vol. 18, no. 2

491--502

An analytical investigation of extensional flow past a porous spherical shell of finite thickness with velocity slip at the surface is presented. The permeability of the shell varies continuously as a function of the radial distance. The flow in the porous region is assumed to obey Darcy’s Law. The drag has been calculated in terms of normal volume flux rate per unit area of the outer and inner surfaces. Particular cases of flow past a homogeneous sphere and no-slip boundary condition have been deduced.

Three - dimensional MHD free - convection flow past an infinite vertical porous plate with gravity modulation

100%

Saini B. S. , Rajvanshi S. C.

International Journal of Applied Mechanics and Engineering

2011

tom Vol. 16, no 4

1093-1107

In the present study, the effect of a fluctuating gravitational field on a three - dimensional MHD free - convection flow past a vertical porous plate with transversally varying suction velocity is investigated. A constant heat flux is prescribed on the plate. It is assumed that the gravity modulation is given by […]. The transformed equations are solved by the perturbation technique. The effect of various physical parameters on the fluid velocity and temperature are computed numerically and discussed through graphs.