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Wyszukujesz frazę "MHD mixed convection" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    CuO–water mhd mixed convection analysis and entropy generation minimization in double-lid–driven u-shaped enclosure with discrete heating
    Autorzy:
    Mliki, Bouchmel
    Miri, Rached
    Djebali, Ridha
    Abbassi, Mohamed A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2204647.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    U-shaped enclosure
    MHD mixed convection
    nanoliquids
    double lid-driven cavity
    entropy generation
    LBM
    Opis:
    The present study explores magnetic nanoliquid mixed convection in a double lid–driven U-shaped enclosure with discrete heat-ing using the lattice Boltzmann method (LBM) numerical method. The nanoliquid thermal conductivity and viscosity are calculated using the Maxwell and Brinkman models respectively. Nanoliquid magnetohydrodynamics (MHD) and mixed convection are analyzed and entropy generation minimisation has been studied. The presented results for isotherms, stream isolines and entropy generation describe the interaction between the various physical phenomena inherent to the problem including the buoyancy, magnetic and shear forces. The operating parameters’ ranges are: Reynolds number (Re: 1–100), Hartman number (Ha: 0–80), magnetic field inclination (γ: 0°–90°), nanoparticles volume fraction (ϕ: 0–0.04) and inclination angle (α: 0°–90°). It was found that the and the total entropy generation augment by increasing Re, ϕ: and γ. conversely, an opposite effect was obtained by increasing Ha and α. The optimum magnetic field and cavity inclination angles to maximum heat transfer are γ = 90° and α = 0.
    Źródło:
    Acta Mechanica et Automatica; 2023, 17, 1; 112--123
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exact solution of MHD mixed convection periodic flow in a rotating vertical channel with heat radiation
    Autorzy:
    Singh, K. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/265295.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    konwekcja mieszana
    magnetohydrodynamika
    promieniowanie cieplne
    periodic flow
    mixed convection
    magnetohydrodynamic (MHD)
    rotating system
    heat radiation
    Opis:
    Magnetohydrodynamic (MHD) mixed convection flow of a viscous, incompressible and electrically conducting fluid in a vertical channel is analyzed analytically. A magnetic field of uniform strength is applied perpendicular to the planes of the channel walls. The fluid is acted upon by a periodic variation of the pressure gradient in the vertically upward direction. The temperature of one of the plates is non-uniform and the temperature difference of the walls of the channel is high enough to induce heat transfer due to radiation. The fluid and the channel rotate in unison with an angular velocity about the axis normal to the plates of the channel. An exact analytical solution of the problem is obtained. Two cases of small and large rotation have been considered to assess the effects of different parameters involved in the flow problem. The velocity field, the amplitude and the phase angle of the shear stress are shown graphically and discussed in detail. During analysis it is found that the flow problem studied by Makinde and Mhone (2005) is incorrect physically and mathematically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 3; 853-869
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mixed convection in MHD flow and heat transfer rate near a stagnation-point on a non-linear vertical stretching sheet
    Autorzy:
    Fenuga, O. J.
    Hassan, A. R.
    Olanrewaju, P. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/265943.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    konwekcja mieszana
    przepływ magnetohydrodynamiczny
    wymiana ciepła
    mixed convection
    MHD flow
    heat transfer rate
    stagnation point
    non-linear vertical stretching sheet
    Opis:
    This work investigates the mixed convection in a Magnetohydrodynamic (MHD) flow and heat transfer rate near a stagnation-point region over a nonlinear vertical stretching sheet. Using a similarity transformation, the governing equations are transformed into a system of ordinary differential equations which are solved numerically using the fourth order Runge-Kutta method with shooting technique. The influence of pertinent flow parameters on velocity, temperature, surface drag force and heat transfer rate are computed and analyzed. Graphical and tabular results are given to examine the nature of the problem. The heat transfer rate at the surface increases with the mixed convection.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 1; 37-51
    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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