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Wyszukujesz frazę "Soret effect" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    The onset of Soret driven ferrothermoconvective instability in the presence of darcy porous medium with anisotropy effect and MFD viscosity
    Autorzy:
    Murugan, D.
    Sekar, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839900.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    anizotropia
    lepkość
    porowatość
    model Darcy'ego
    anisotropy effect
    Darcy model
    MFD viscosity
    porous medium
    Soret coefficient
    Opis:
    The effect of magnetic dependent (MFD) viscosity on Soret driven ferrothermohaline convection in a densely packed anisotropic porous medium has been studied. The Soret effect is focused on the system. A linear stability analysis is carried out using a normal mode technique and a perturbation method is applied. It is found that a stationary mode is favorable for the Darcy model. Vertical anisotropy tends to destabilize the system and the magnetization effect is found to stabilize the system. It is also found that the MFD viscosity delays the onset of convection. Numerical computations are made and illustrated graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2021, 26, 1; 156-177
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Linear stability effect of densely distributed porous medium and Coriolis force on Soret driven ferrothermohaline convection
    Autorzy:
    Sekar, R.
    Murugan, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/264456.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    siła Coriolisa
    model Darcy'ego
    efekt Soreta
    ferrofluid
    Coriolis force
    Darcy model
    Soret effect
    thermohaline convection
    Opis:
    The effect of Coriolis force on the Soret driven ferrothermohaline convection in a densely packed porous medium has been studied. A linear stability analysis is carried out using normal mode technique. It is found that stationary convection is favorable for the Darcy model, therefore oscillatory instability is studied. A small thermal perturbation is applied to the basic state and linear stability analysis is used for which the normal mode technique is applied. It is found that the presence of a porous medium favours the onset of convection. The porous medium is assumed to be variable and the effect of the permeable parameter is to destabilize the system. The present work has been carried out both for oscillatory as well as stationary instabilities. The results are depicted graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 911-928
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magneto convection in a layer of nanofluid with soret effect
    Autorzy:
    Chand, R.
    Rana, G. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/387119.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
    Tematy:
    nanofluid
    Zero-Flux
    Soret Effect
    Nanofluid Lewis Number
    Chandrasekhar Number
    Galerkin methods
    magnetic field
    pole magnatyczne
    metoda Galerkina
    efekt Soreta
    liczba Lewisa
    liczba Chandrasekhara
    nanopłyny
    nanociecze
    Opis:
    Double diffusive convection in a horizontal layer of nanofluid in the presence of uniform vertical magnetic field with Soret effect is investigated for more realistic boundary conditions. The flux of volume fraction of nanoparticles is taken to be zero on the isothermal boundaries. The normal mode method is used to find linear stability analysis for the fluid layer. Oscillatory convection is ruled out because of the absence of the two opposing buoyancy forces. Graphs have been plotted to find the effects of various parameters on the stationary convection and it is found that magnetic field, solutal Rayleigh number and nanofluid Lewis number stabilizes fluid layer, while Soret effect, Lewis number, modified diffusivity ratio and nanoparticle Rayleigh number destabilize the fluid layer.
    Źródło:
    Acta Mechanica et Automatica; 2015, 9, 2; 63-69
    1898-4088
    2300-5319
    Pojawia się w:
    Acta Mechanica et Automatica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of soret and temperature dependent viscosity on thermohaline convection in a ferrofluid saturating a porous medium
    Autorzy:
    Sekar, R.
    Raju, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/955159.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    porowatość
    ciecz wieloskładnikowa
    wymiana ciepła i masy
    ferroconvection
    porous medium
    Soret effect
    multi-component system
    Brinkman model
    temperature dependent viscosity
    Galerkin technique
    Opis:
    Soret driven ferrothermoconvective instability in multi-component fluids has a wide range of applications in heat and mass transfer. This paper deals with the theoretical investigation of the effect of temperature dependent viscosity on a Soret driven ferrothermohaline convection heated from below and salted from above subjected to a transverse uniform magnetic field in the presence of a porous medium. The Brinkman model is used in the study. It is found that the stationary mode of instability is preferred. For a horizontal fluid layer contained between two free boundaries an exact solution is examined using the normal mode technique for a linear stability analysis. The effect of salinity has been included in magnetization and density of the fluid. The critical thermal magnetic Rayleigh number for the onset of instability is obtained numerically for sufficiently large values of the buoyancy magnetization parameter M1 using the method of numerical Galerkin technique. It is found that magnetization and permeability of the porous medium destabilize the system. The effect of temperature dependent viscosity stabilizes the system on the onset of convection.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2014, 19, 2; 321-336
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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