Coupling Biot and Navier-Stokes equations for modelling fluid-poroelastic media interaction

  • Authors:
  • Santiago Badia;Annalisa Quaini;Alfio Quarteroni

  • Affiliations:
  • International Center for Numerical Methods in Engineering (CIMNE), Universitat Politècnica de Catalunya, Jordi Girona 1-3, Edifici C1, 08034 Barcelona, Spain;Chair of Modelling and Scientific Computing (CMCS), Institute of Analysis and Scientific Computing (IACS), ícole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland;Chair of Modelling and Scientific Computing (CMCS), Institute of Analysis and Scientific Computing (IACS), ícole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland an ...

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2009

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Abstract

The interaction between a fluid and a poroelastic structure is a complex problem that couples the Navier-Stokes equations with the Biot system. The finite element approximation of this problem is involved due to the fact that both subproblems are indefinite. In this work, we first design residual-based stabilization techniques for the Biot system, motivated by the variational multiscale approach. Then, we state the monolithic Navier-Stokes/Biot system with the appropriate transmission conditions at the interface. For the solution of the coupled system, we adopt both monolithic solvers and heterogeneous domain decomposition strategies. Different domain decomposition methods are considered and their convergence is analyzed for a simplified problem. We compare the efficiency of all the methods on a test problem that exhibits a large added-mass effect, as it happens in hemodynamics applications.