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Wyszukujesz frazę "slip boundary conditions" wg kryterium: Temat

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    Wyświetlanie 1-4 z 4
    Tytuł:
    Experimental Determination of Limit Adhesive Shear Stress between Solid Wall and Liquid
    Autorzy:
    Sawicki, J. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/241430.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
    Tematy:
    hydromechanics
    slip boundary conditions
    adhesion
    Opis:
    The slip boundary condition can be a very useful relation when some specific problems of hydromechanics are considered. According to the classical form of this condition, the slip of a fluid with respect to the solid wall should occur even at a very low velocity of motion. However, both theoretical analysis and certain empirical data suggest that there must be a limit value of the wall shear stress, below which the slip does not occur. According to the simplified balance of adhesive and gravitational forces, a simple experimental method for determining this stress has been proposed and applied in this paper.
    Źródło:
    Archives of Hydro-Engineering and Environmental Mechanics; 2014, 61, 3-4; 175--181
    1231-3726
    Pojawia się w:
    Archives of Hydro-Engineering and Environmental Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical modelling of a microreactor for thermocatalytic decomposition of toxic compounds
    Autorzy:
    Jóźwik, P.
    Karcz, M.
    Badur, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/185029.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    CFD
    mikroreaktor
    modelowanie
    microreactor
    modelling
    slip boundary conditions
    Opis:
    In this paper a three-dimensional model for determination of a microreactor's length is presented and discussed. The reaction of thermocatalytic decomposition has been implemented on the base of experimental data. Simplified Reynolds-Maxwell formula for the slip velocity boundary condition has been analysed and validated. The influence of the Knudsen diffusion on the microreactor's performance has also been verified. It was revealed that with a given operating conditions and a given geometry of the microreactor, there is no need for application of slip boundary conditions and the Knudsen diffusion in further analysis. It has also been shown that the microreactor's length could be practically estimated using standard models.
    Źródło:
    Chemical and Process Engineering; 2011, 32, 3; 215-227
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study of MHD fluid with second order slip and thermal flow over a nonlinear stretching sheet
    Autorzy:
    Jauhri, Shefali
    Mishra, Upendra
    Powiązania:
    https://bibliotekanauki.pl/articles/2174199.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    płyn magnetyczny
    nanociecz
    metoda Runge-Kutty
    stagnation point flow
    second order slip boundary conditions
    nonlinear stretching sheet
    Runge-Kutta method
    Opis:
    An electrically conducted viscous incompressible nanofluid flow caused by the nonlinear stretching surface with stagnation flow has been investigated numerically. The effect of Brownian motion and thermophoresis on the nanofluid is also incorporated. The governing partial differential equations with nonlinear second order boundary conditions are solved by the fourth order Runge-Kutta technique using MATLAB programming. The effect of the radiation parameter (Rd), stretching parameter (n), Brownian motion parameter (Nb), thermophoresis parameter (Nt) on temperature, velocity and mass transfer are shown graphically. The influence of some of these parameters on the local Nusselt number (−′(0)) and local Sherwood number (−′(0)) are shown by the graphs.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 2; 98--114
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Combined effects of Soret and Dufour on MHD flow of a power-law fluid over flat plate in slip flow rigime
    Autorzy:
    Saritha, K.
    Rajasekhar, M. N.
    Reddy, B. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265391.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    liczba Prandtla
    warunki granicy poślizgu
    zjawisko Dufoura
    power-law fluid
    Soret and Dufour number
    slip boundary conditions
    finite difference method
    Prandtl number
    Opis:
    A numerical model is developed to study the Soret and Dufour effects on MHD boundary layer flow of a power-law fluid over a flat plate with velocity, thermal and solutal slip boundary conditions. The governing equations for momentum, energy and mass are transformed to a set of non-linear coupled ordinary differential equations by using similarity transformations. These non-linear ordinary differential equations are first linearized using a quasi-linearization technique and then solved numerically based on the implicit finite difference scheme over the entire range of physical parameters with appropriate boundary conditions. The influence of various governing parameters along with velocity, thermal and mass slip parameters on velocity, temperature and concentration fields are examined graphically. Also, the effects of slip parameters, the Soret and Dufour number on the skin friction, Nusselt number and Sherwood number are studied. Results show that the increase in the Soret number leads to a decrease in the temperature distribution and to an increase in concentration fields.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 3; 689-705
    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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