Browsing by Author "Kumar, Kishore S."

Now showing 1 - 4 of 4
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    Magnetohydrodynamic Flow and Heat Transfer About a Rotating Disk with Suction and Injection at the Disk Surface
    Kumar, Kishore S.; Thacker, William I.; Watson, Layne T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1986)
    This paper studies the effects of a partial magnetic field on the flow and heat transfer about a porous rotating disk. Using modem quasi-Newton and globally convergent homotopy methods, numerical solutions are obtained for a wide range of magnetic field strengths and injection and suction velocities. Results are presented graphically in terms of three nondimensional parameters. There is excellent agreement with previous work and asymptotic formulas.
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    Magnetohydrodynamic Flow Between a Solid Rotating Disk and a Porous Stationary Disk
    Kumar, Kishore S.; Thacker, William I.; Watson, Layne T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1987)
    In this paper we examine the flow of a conducting fluid between a solid rotating disk and a stationary porous disk with uniform section of fluid through the porous disk in the presence of a magnetic fiels. The equations of motion are solved using least change secant update quasi-Newton and modern root finding techniques. The fluid motion depends on the cross-flow Reynolds number, rotation Reynolds number and Hartmann number. The effects of the parameters on the flow field are presented graphically.
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    Magnetohydrodynamic Flow Past a Porous Rotating Disk in a Circular Magnetic Field
    Kumar, Kishore S.; Thacker, William I.; Watson, Layne T. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1987)
    This paper studies the effects of a circular magnetic field on the flow of a conducting fluid about a porous rotating disk. Using modern quasi-Newton and globally convergent homotopy methods, numerical solutions are obtained for a wide range of magentic field strengths, suction and injection velocities and Alfven and disk speeds. Results are presented graphically in terms of three nondimensional parameters. There is excellent agreement with previous work and asymptotic formulas.
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    Magnetohydroynamic Free Convection from a Disk Rotating in a Vertical Plane
    Thacker, William I.; Watson, Layne T.; Kumar, Kishore S. (Department of Computer Science, Virginia Polytechnic Institute & State University, 1988)
    The non-axisymmetric motion (produced by a buoyancy induced cross flow) of a fluid in contact with a rotating disk and in the presence of a magnetic field normal to the disk is studied. Using modern quasi- Newton techniques, B-splines, and a Galerkin approximation to the fluid motion equations, numerical solutions are obtained for a wide range of magnetic field strengths and Prandtl numbers (ratio of kinematic viscosity to thermal conductivity). Results are presented both in tabular and graphical form in terms of two non-dimensional parameters. There is excellent agreement with previous work.