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Partitioned semi-implicit methods for simulation of biomechanical fluid-structure interaction problems
dc.contributor.author | Naseri, Alireza |
dc.contributor.author | Lehmkuhl Barba, Oriol |
dc.contributor.author | González Acedo, Ignacio |
dc.contributor.author | Oliva Llena, Asensio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2016-11-24T14:59:40Z |
dc.date.available | 2016-11-24T14:59:40Z |
dc.date.issued | 2016 |
dc.identifier.citation | Naseri, A., Lehmkuhl, O., Gonzalez, I., Oliva, A. Partitioned semi-implicit methods for simulation of biomechanical fluid-structure interaction problems. A: European Thermal-Sciences Conference. "Journal of Physics: conference series, vol. 745, 2016". Krakow: Institute of Physics (IOP), 2016. |
dc.identifier.isbn | 1742-6596 |
dc.identifier.uri | http://hdl.handle.net/2117/97189 |
dc.description | This article is published under a CC BY licence. The Version of Record is available online at: http://dx.doi.org/10.1088/1742-6596/745/3/032020. |
dc.description.abstract | This paper represents numerical simulation of fluid-structure interaction (FSI) system involving an incompressible viscous fluid and a lightweight elastic structure. We follow a semi-implicit approach in which we implicitly couple the added-mass term (pressure stress) of the fluid to the structure, while other terms are coupled explicitly. This significantly reduces the computational cost of the simulations while showing adequate stability. Several coupling schemes are tested including fixed-point method with different static and dynamic relaxation, as well as Newton-Krylov method with approximated Jacobian. Numerical tests are conducted in the context of a biomechanical problem. Results indicate that the Newton-Krylov solver outperforms fixed point ones while introducing more complexity to the problem due to the evaluation of the Jacobian. Fixed-point solver with Aitken's relaxation method also proved to be a simple, yet efficient method for FSI simulations. |
dc.language.iso | eng |
dc.publisher | Institute of Physics (IOP) |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria mecànica |
dc.subject.lcsh | Fluid-structure interaction |
dc.subject.other | approximation theory |
dc.subject.other | blood vessels |
dc.subject.other | haemodynamics |
dc.subject.other | Newton method |
dc.subject.other | FSI simulation |
dc.subject.other | Aitken's relaxation method |
dc.subject.other | fixed-point solver |
dc.subject.other | approximated Jacobian |
dc.subject.other | Newton-Krylov method |
dc.subject.other | dynamic relaxation |
dc.subject.other | static relaxation |
dc.subject.other | fixed-point method |
dc.subject.other | pressure stress |
dc.subject.other | addedmass term |
dc.subject.other | lightweight elastic structure |
dc.subject.other | incompressible viscous fluid |
dc.subject.other | fluid-structure interaction system |
dc.subject.other | numerical simulation |
dc.subject.other | biomechanical fluid-structure interaction problems |
dc.subject.other | partitioned semiimplicit method |
dc.title | Partitioned semi-implicit methods for simulation of biomechanical fluid-structure interaction problems |
dc.type | Conference report |
dc.subject.lemac | Interacció fluid-estructura |
dc.contributor.group | Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
dc.identifier.doi | 10.1088/1742-6596/745/3/032020 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://iopscience.iop.org/article/10.1088/1742-6596/745/3/032020 |
dc.rights.access | Open Access |
local.identifier.drac | 19266724 |
dc.description.version | Postprint (published version) |
local.citation.author | Naseri, A.; Lehmkuhl, O.; Gonzalez, I.; Oliva, A. |
local.citation.contributor | European Thermal-Sciences Conference |
local.citation.pubplace | Krakow |
local.citation.publicationName | Journal of Physics: conference series, vol. 745, 2016 |