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Pregled bibliografske jedinice broj: 669326

A Modular, Operator Splitting Scheme for Fluid- Structure Interaction Problems with Thick Structures


Bukač, Martina; Čanić, Sunčica; Glowinski, Roland; Muha, Boris; Quaini, Annalisa
A Modular, Operator Splitting Scheme for Fluid- Structure Interaction Problems with Thick Structures // International journal for numerical methods in fluids, 74 (2014), 8; 577-604 doi:10.1002/fld.3863 (međunarodna recenzija, članak, znanstveni)


Naslov
A Modular, Operator Splitting Scheme for Fluid- Structure Interaction Problems with Thick Structures

Autori
Bukač, Martina ; Čanić, Sunčica ; Glowinski, Roland ; Muha, Boris ; Quaini, Annalisa

Izvornik
International journal for numerical methods in fluids (0271-2091) 74 (2014), 8; 577-604

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Fluid-structure interaction; thick structure; operator-splitting scheme; blood flow

Sažetak
We present an operator-splitting scheme for fluid- structure interaction (FSI) problems in hemodynamics, where the thickness of the structural wall is comparable to the radius of the cylindrical fluid domain. The equations of linear elasticity are used to model the structure, while the Navier-Stokes equations for an incompressible viscous fluid are used to model the fluid. The operator splitting scheme, based on Lie splitting, separates the elastodynamics structure problem, from a fluid problem in which structure inertia is included to achieve unconditional stability. We prove energy estimates associated with unconditional stability of this modular scheme for the full nonlinear FSI problem defined on a moving domain, without requiring any sub- iterations within time steps. Two numerical examples are presented, showing excellent agreement with the results of monolithic schemes. First-order convergence in time is shown numerically. Modularity, unconditional stability without temporal sub-iterations, and simple implementation are the features that make this operator-splitting scheme particularly appealing for multi-physics problems involving fluid- structure interaction.

Izvorni jezik
Engleski

Znanstvena područja
Matematika



POVEZANOST RADA


Projekt / tema
037-0693014-2765 - Matematička analiza kompozitnih i tankih struktura (Zvonimir Tutek, )

Ustanove
Prirodoslovno-matematički fakultet, Matematički odjel, Zagreb

Autor s matičnim brojem:
Boris Muha, (267374)

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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