6533b871fe1ef96bd12d17c9

RESEARCH PRODUCT

Kinematic splitting algorithm for fluid–structure interaction in hemodynamics

Maria Lukacova-medvidovaG. RusnákováG. RusnákováAnna Hundertmark-zaušková

subject

Conservation lawMechanical EngineeringComputational MechanicsStability (learning theory)General Physics and AstronomyKinematicsNon-Newtonian fluidComputer Science ApplicationsPhysics::Fluid DynamicsMechanics of MaterialsFluid–structure interactionNewtonian fluidFluid dynamicsAlgorithmBifurcationMathematics

description

Abstract In this paper we study a kinematic splitting algorithm for fluid–structure interaction problems. This algorithm belongs to the class of loosely-coupled fluid–structure interaction schemes. We will present stability analysis for a coupled problem of non-Newtonian shear-dependent fluids in moving domains with viscoelastic boundaries. Fluid flow is described by the conservation laws with nonlinearities in convective and diffusive terms. For simplicity of presentation the structure is modelled by the generalized string equation, but the results presented in the paper may be generalized to more complex structure models. The arbitrary Lagrangian–Eulerian approach is used in order to take into account moving computational domain. Numerical experiments including numerical error analysis and comparison of hemodynamic parameters for Newtonian and non-Newtonian fluids demonstrate reliability of the proposed scheme.

yearjournalcountryeditionlanguage
2013-10-01Computer Methods in Applied Mechanics and Engineering
https://doi.org/10.1016/j.cma.2013.05.025