VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Formulation of the method of fundamental solutions for two-phase Stokes flow
    Rek, Zlatko ; Šarler, Božidar
    The method of fundamental solutions with a subdomain technique is used for the solution of the free boundary problem associated with a two-phase Stokes flow in a 2D geometry. The solution procedure ... is based on the collocation of the boundary conditions with the Stokeslets. It is formulated for the flow of unmixing fluids in contact, where the velocity, pressure field, and position of the free boundary between the fluids must be determined. The standard formulation of the method of fundamental solutions is, for the first time, upgraded for the case with mixed velocity and pressure boundary conditions and verified on a T-splitter single-phase flow with unsymmetric pressure boundary conditions. The standard control volume method is used for the reference solution. The accurate evaluation of the velocity derivatives, which are required to calculate the balance of forces at the free boundary between the fluids, is achieved in a closed form in contrast to previous numerical attempts. An algorithm for iteratively calculating the position of the free boundary that involves displacement, smoothing and repositioning of the nodes is elaborated. The procedure is verified for a concurrent flow of two fluids in a channel. The velocity and velocity derivatives show fast convergence to the analytical solution. The developed boundary meshless method is easy to code, accurate and computationally efficient since only collocation at the fixed and free boundaries is needed.
    Vir: Engineering analysis with boundary elements. - ISSN 0955-7997 (Vol. 158, Jan. 2024, str. 199-210)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 171090179

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0955799723005167
    DiRROS - Digitalni repozitorij raziskovalnih organizacij Slovenije
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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