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    Wyświetlanie 1-3 z 3
    Tytuł:
    Magneto-polar fluid flow through a porous medium of variable permeability in slip flow regime
    Autorzy:
    Gaur, P. K.
    Jha, A. K.
    Sharma, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/266273.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    przepuszczalność
    przenikanie ciepła
    polar fluid
    MHD
    permeability
    slip-flow
    heat transfer
    Opis:
    A theoretical study is carried out to obtain an analytical solution of free convective heat transfer for the flow of a polar fluid through a porous medium with variable permeability bounded by a semi-infinite vertical plate in a slip flow regime. A uniform magnetic field acts perpendicular to the porous surface. The free stream velocity follows an exponentially decreasing small perturbation law. Using the approximate method the expressions for the velocity, microrotation, and temperature are obtained. Further, the results of the skin friction coefficient, the couple stress coefficient and the rate of heat transfer at the wall are presented with various values of fluid properties and flow conditions.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 323-339
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MHD heat transfer in two-layered flow of conducting fluids through a channel bounded by two parallel porous plates in a rotating system
    Autorzy:
    Linga Raju, T.
    Neela Rao, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/264768.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    przenikanie ciepła
    porowatość
    MHD
    two-layered fluids/immiscible fluids
    unsteady flow
    heat transfer
    rigid rotation
    porous boundaries
    Opis:
    The paper aims to analyze the heat transfer aspects of a two-layered fluid flow in a horizontal channel under the action of an applied magnetic and electric fields, when the whole system is rotated about an axis perpendicular to the flow. The flow is driven by a common constant pressure gradient in the channel bounded by two parallel porous insulating plates, one being stationary and the other one oscillatory. The fluids in the two regions are considered electrically conducting, and are assumed to be incompressible with variable properties, namely, different densities, viscosities, thermal and electrical conductivities. The transport properties of the two fluids are taken to be constant and the bounding plates are maintained at constant and equal temperature. The governing partial differential equations are then reduced to the ordinary linear differential equations by using a two-term series. The temperature distributions in both fluid regions of the channel are derived analytically. The results are presented graphically to discuss the effect on the heat transfer characteristics and their dependence on the governing parameters, i.e., the Hartmann number, Taylor number, porous parameter, and ratios of the viscosities, heights, electrical and thermal conductivities. It is observed that, as the Coriolis forces become stronger, i.e., as the Taylor number increases, the temperature decreases in the two fluid regions. It is also seen that an increase in porous parameter diminishes the temperature distribution in both the regions.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 3; 623-648
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Melting heat transfer and MHD boundary layer flow of Eyring-Powell nanofluid over a nonlinear stretching sheet with slip
    Autorzy:
    Reddy, N. V. B.
    Kishan, N.
    Reddy, C. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265493.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    płyn Eyringa-Powella
    przenikanie ciepła
    magnetohydrodynamika
    nanofluid
    termoforeza
    Eyring-Powell fluid
    melting heat transfer
    MHD
    stretching sheet
    Brownian motion
    thermophoresis
    Opis:
    The steady laminar incompressible viscous magneto hydrodynamic boundary layer flow of an Eyring- Powell fluid over a nonlinear stretching flat surface in a nanofluid with slip condition and heat transfer through melting effect has been investigated numerically. The resulting nonlinear governing partial differential equations with associated boundary conditions of the problem have been formulated and transformed into a non-similar form. The resultant equations are then solved numerically using the Runge-Kutta fourth order method along with the shooting technique. The physical significance of different parameters on the velocity, temperature and nanoparticle volume fraction profiles is discussed through graphical illustrations. The impact of physical parameters on the local skin friction coefficient and rate of heat transfer is shown in tabulated form.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 1; 161-178
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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