• exact solutions for the incompressible viscous magnetohydrodynamic fluid of a rotating disk flow

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 948
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the main interest of the present investigation is to generate exact solutions to the steady navier–stokes equations for the incompressible newtonian viscous electrically conducting fluid flow motion due to a disk rotating with a constant angular speed. for an external uniform magnetic field applied perpendicular to the plane of the disk, the governing equations allow an exact solution to develop taking into account of the rotational non-axisymmetric stationary conducting flow.making use of the analytic solution, exact formulas for the angular velocity components as well as for the wall shear stresses are extracted. it is proved analytically that for the specific flow the properly defined thicknesses decay as the magnetic field strength increases in magnitude. interaction of the resolved flow field with the surrounding temperature is further analyzed via the energy equation. the temperature field is shown to accord with the dissipation and the joule heating. according to fourier's heat law, a constant heat transfer from the disk to the fluid occurs, though decreases for small magnetic fields because of the dominance of joule heating, it eventually increases for growing magnetic field parameters.

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