Examinando por Materia "Variable viscosity"

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  • Miniatura
    PublicaciónAcceso abierto
    Effects of variable viscosity and thermal conductivity on MHD flow past a vertical plate.
    (2013-08-09) G. C., Hazarika; Utpal Sarma, Gopal Ch.
    Heat and mass transfer flow along a vertical plate under the combined buoyancy force of thermal and species diffusion in the presence of a transverse magnetic field is investigated. The boundary layer equations are transformed in to ordinary differential equations with similarity transformations. The effects of variable viscosity and thermal conductivity on velocity profile, temperature profile and concentration profiles are investigated by solving the governing transformed ordinary differential equations with the help of Runge-Kutta shooting method and plotted graphically.
  • Miniatura
    PublicaciónAcceso abierto
    The effects of variable viscosity and thermal conductivity on mhd flow due to a point sink.
    (2011-10-13) Choudhury, Mira; Chandra Hazarika, Gopal
    A theoretical investigation of the influence of variable viscosity and thermal conductivity on the MHD boundary layer flow due to a point sink is presented. Both the fluid viscosity and thermal conductivity are assumed to vary as inverse linear functions of temperature. The flow governing partial differential equations are transformed into ordinary differential equations by means of similarity transformation. The problem is solved numerically using shooting method .The effects of viscosity parameter, thermal conductivity parameter and magnetic field parameter on the flow field for Pr = 0.70 and Ec = 0.10 are considered. From the results it has been observed that the effects of the above variable thermo-viscous parameters and magnetic parameter are considerable and they have to be taken into consideration in the flow and heat transfer problem.