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Thermophysics and Aeromechanics

2012 year, number 6

MHD free convection flow over an isothermal vertical cone with temperature dependent viscosity

E. Thandapani1, A.R. Ragavan2, and G. Palani2
1University of Madras, Tamil Nadu, India
2Dr. Ambedkar Govt. Arts College, Tamil Nadu, India
Keywords: apex, magnetohydrodynamics, MHD, finite difference, Nusselt number, vertical cone, variable viscosity
Pages: 697-710


Free convection flow over an isothermal vertical cone immersed in a fluid with variable viscosity and MHD is studied in this paper. Using appropriate variables, the basic equations are transformed into the non- dimensional boundary-layer equations. These equations are then solved numerically using a very efficient implicit finite-difference method known as Crankl—Nicolson scheme. Detailed results for the velocity, temperature, skin friction, and heat transfer rates for a selection of parameter sets consisting of the viscosity parameter, magnetic field parameter, and Prandtl number are discussed. In order to validate our numerical results, the present results are compared with the available work in the literature and are found to be in an excellent agreement.