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Suche nach „[P.] [Jenny]“ hat 2 Publikationen gefunden
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    Maschinenbau und Mechatronik

    Beitrag (Sammelband oder Tagungsband)

    P. Jenny, Giuseppe Bonfigli

    Application of the multi-scale-finite-volume method to the simulation of incompressible flows with immersed boundaries

    New results in numerical and experimental fluid mechanics, Berlin; Heidelberg, vol. 112

    2010

    ISBN: 978-3-642-14242-0

    Maschinenbau und Mechatronik

    Zeitschriftenartikel

    P. Jenny, Giuseppe Bonfigli

    An efficient multi-scale Poisson solver for the incompressible Navier-Stokes equations with immersed boundaries

    Journal of Computational Physics, vol. 228, no. 12, pp. 4568-4587

    2009

    Abstract anzeigen

    The iterative-multi-scale-finite-volume (IMSFV) procedure is applied as an efficient solver for the pressure Poisson equation arising in numerical methods for the simulation of incompressible flows with the immersed-interface method (IIM). Motivated by the requirements of the specific IIM implementation, a modified version of the IMSFV algorithm is presented to allow the solution of problems, in which the varying coefficient of the elliptic equation (e.g. the permeability of the medium in the context of the simulation of flows in porous media) varies over several orders of magnitude or even becomes zero within the integration domain. Furthermore, a strategy is proposed to incorporate the iterative procedure needed by the IIM to converge out constraints at immersed boundaries into the iterative IMSFV cycle. No significant deterioration of performance of the IMSFV method is observed with respect to cases, in which no iterative improvement of the boundary conditions is considered.