2014
DOI: 10.1002/num.21936
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An operator splitting approach for the interaction between a fluid and a multilayered poroelastic structure

Abstract: We develop a loosely coupled fluid-structure interaction finite element solver based on the Lie operator splitting scheme. The scheme is applied to the interaction between an incompressible, viscous, Newtonian fluid, and a multilayered structure, which consists of a thin elastic layer and a thick poroelastic material. The thin layer is modeled using the linearly elastic Koiter membrane model, while the thick poroelastic layer is modeled as a Biot system. We prove a conditional stability of the scheme and deriv… Show more

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Cited by 62 publications
(54 citation statements)
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“…We assume that all the finite element approximation spaces comply with the prescribed Dirichlet conditions on external boundaries BΩ f , BΩ p , without entering into the details of all possible variations for cases (i) and (ii). The bilinear forms relative to the structure, namely equation (5), are: For the free flow, equations (1)- (2), and the filtration through the porous matrix, equations (6)-(7), the bilinear forms are:…”
Section: Finite Element Approximation Of the Coupled Problem Using Nimentioning
confidence: 99%
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“…We assume that all the finite element approximation spaces comply with the prescribed Dirichlet conditions on external boundaries BΩ f , BΩ p , without entering into the details of all possible variations for cases (i) and (ii). The bilinear forms relative to the structure, namely equation (5), are: For the free flow, equations (1)- (2), and the filtration through the porous matrix, equations (6)-(7), the bilinear forms are:…”
Section: Finite Element Approximation Of the Coupled Problem Using Nimentioning
confidence: 99%
“…In the context of biomedical applications, FSI studies involving poroelastic materials are scanty. Among the available contributions, we mention [1,39], as well as our recent work [5].…”
Section: Introductionmentioning
confidence: 99%
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“…To approximate the horizontal displacement, we need to use the conservation of momentum (8) and the no-slip interface condition (9). Thus, by applying (8) and (9) at the location denoted by e in Fig.…”
Section: Discretization For V P and V F At The Interfacementioning
confidence: 99%
“…Following the same technique to approximate the components of the stress tensor as above, we again obtain a formulation can be calculated from the interface conditions (8) and (9). By applying these expressions to (20), the unknowns for both subproblems are included in the coupling between the two systems.…”
Section: Discretization For V P and V F At The Interfacementioning
confidence: 99%