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    Comparison Between Different Immersed Boundary Conditions for Simulation of Complex Fluid Flows

    A. Mark1,2, R. Rundqvist1, F. Edelvik1

    FDMP-Fluid Dynamics & Materials Processing, Vol.7, No.3, pp. 241-258, 2011, DOI:10.3970/fdmp.2011.007.241

    Abstract In the literature immersed boundary methods are employed to simulate complex flows around moving arbitrary bodies without the necessity of remeshing. These methods employ a regular Eulerian mesh to simulate the fluid flow and a Lagrangian representation of the boundary of the bodies. The two representations can be coupled through an immersed boundary condition constraining the fluid to exactly follow the boundary of the bodies (immersed boundaries). Typically such methods suffer from accuracy problems, that arise from spurious mass fluxes over the immersed boundary (IB), pressure boundary conditions or high density ratios. The mirroring IB method Mark (2008); Mark and… More >

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