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Convection from an inverted cone in a porous medium with cross-diffusion effects. (English) Zbl 1217.76071
Summary: Convection from an inverted cone in a porous medium with cross-diffusion is studied numerically. Diffusion-thermo and thermo-diffusion effects are assumed to be significant. The governing equations are transformed into nonlinear ordinary differential equations and then solved numerically using a shooting method together with a sixth order Runge-Kutta method. Verification of the accuracy and correctness of the results is achieved by solving the equations using an independent linearisation method. The effects of the Dufour and the Soret parameters are investigated. The results for the skin friction, Nusselt number and the Sherwood number are presented graphically and in tabular form.
MSC:
76S05Flows in porous media; filtration; seepage
65L06Multistep, Runge-Kutta, and extrapolation methods
76R10Free convection (fluid mechanics)
65L10Boundary value problems for ODE (numerical methods)
76M25Other numerical methods (fluid mechanics)
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