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Wyszukujesz frazę "hall currents" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Unsteady MHD flow due to non-coaxial rotations of a porous disk and a fluid at infinity subjected to a periodic suction
    Autorzy:
    Guria, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/266154.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    przepływy lepkie
    pole magnetyczne
    hall currents
    eccentric
    MHD
    oscillating
    rotating
    Opis:
    The unsteady flow of a viscous incompressible electrically conducting fluid due to non-coaxial rotations of a porous disk subjected to a periodic suction and the fluid at infinity in the presence of applied transverse magnetic field has been studied. The fluid at infinity passes through a fixed point. The velocity field, shear stresses are obtained in a closed form.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 3; 623-633
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal convection of magneto compressible couple-stress fluid saturated in a porous medium with Hall current
    Autorzy:
    Mehta, C. B.
    Singh, M.
    Kumar, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265186.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    pole magnetyczne
    ściśliwość
    porowatość
    prądy Hall'a
    couple stress fluids
    horizontal magnetic field
    compressibility
    porous medium
    Hall currents
    Opis:
    An investigation is made on the effect of Hall currents on thermal instability of a compressible couple-stress fluid in the presence of a horizontal magnetic field saturated in a porous medium. The analysis is carried out within the framework of the linear stability theory and normal mode technique. A dispersion relation governing the effects of viscoelasticity, Hall currents, compressibility, magnetic field and porous medium is derived. For the stationary convection a couple-stress fluid behaves like an ordinary Newtonian fluid due to the vanishing of the viscoelastic parameter. Compressibility, the magnetic filed and couple-stress parameter have stabilizing effects on the system whereas Hall currents and medium permeability have a destabilizing effect on the system, but in the absence of Hall current couple-stress has a destabilizing effect on the system. It has been observed that oscillatory modes are introduced due to the presence of viscoelasticity, magnetic field porous medium and Hall currents which were non-existent in their absence.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 1; 83-93
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Hall currents on unsteady magnetohydrodynamic two-ionized fluid flow and heat transfer in a channel
    Autorzy:
    Raju, T. Linga
    Rao, V. Gowrisankara
    Powiązania:
    https://bibliotekanauki.pl/articles/1839879.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    czujnik Halla
    wymiana ciepła
    magnetohydrodynamika
    Hall currents
    heat transfer
    magnetohydrodynamics
    multi-fluid model
    plasma flows
    Opis:
    An unsteady magnetohydrodynamic (MHD) heat transfer two-fluid flow of ionized gases through a horizontal channel between parallel non-conducting plates, by taking Hall currents into account is studied. The governing partial differential equations that describe the flow and heat transfer under the adopted conditions are solved for the velocity and temperature distributions by a regular perturbation technique. Profiles for the velocity and temperature distributions as well the rates of heat transfer coefficient are presented graphically, and a parametric study is performed. The results reveal that the combined effects of the Hartmann number, Hall parameter, and the ratios of viscosities, heights, electrical and thermal conductivities have a significant impact on an unsteady MHD heat transfer two-ionized fluid flow characteristics.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 2; 84-106
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of hall currents on thermal instability of dusty couple stress fluid
    Autorzy:
    Aggarwal, A. K.
    Verma, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/240229.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    couple-stress fluid
    dust particles
    hall currents
    stationary convection
    oscillatory modes
    magnetic field
    ziarna pyłu
    konwekcja
    pole magnetyczne
    Opis:
    In this paper, effect of Hall currents on the thermal instability of couple-stress fluid permeated with dust particles has been considered. Following the linearized stability theory and normal mode analysis, the dispersion relation is obtained. For the case of stationary convection, dust particles and Hall currents are found to have destabilizing effect while couple stresses have stabilizing effect on the system. Magnetic field induced by Hall currents has stabilizing/destabilizing effect under certain conditions. It is found that due to the presence of Hall currents (hence magnetic field), oscillatory modes are produced which were non-existent in their absence.
    Źródło:
    Archives of Thermodynamics; 2016, 37, 3; 3-18
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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