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Simulations of time harmonic blood flow in the Mesenteric artery: comparing finite element and lattice Boltzmann methods
KTH, School of Computer Science and Communication (CSC), Centres, Centre for High Performance Computing, PDC.ORCID iD: 0000-0002-6175-3466
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2009 (English)In: Biomedical engineering online, ISSN 1475-925X, E-ISSN 1475-925X, Vol. 8, no 23, 28- p.Article in journal (Refereed) Published
Abstract [en]

Background: Systolic blood flow has been simulated in the abdominal aorta and the superior mesenteric artery. The simulations were carried out using two different computational hemodynamic methods: the finite element method to solve the Navier Stokes equations and the lattice Boltzmann method. Results: We have validated the lattice Boltzmann method for systolic flows by comparing the velocity and pressure profiles of simulated blood flow between methods. We have also analyzed flow-specific characteristics such as the formation of a vortex at curvatures and traces of flow. Conclusion: The lattice Boltzmann Method is as accurate as a Navier Stokes solver for computing complex blood flows. As such it is a good alternative for computational hemodynamics, certainly in situation where coupling to other models is required.

Place, publisher, year, edition, pages
2009. Vol. 8, no 23, 28- p.
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Computer and Information Science
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URN: urn:nbn:se:kth:diva-75026DOI: 10.1186/1475-925X-8-23ISI: 000271062100001OAI: oai:DiVA.org:kth-75026DiVA: diva2:490319
Note
QC 20120214Available from: 2012-02-04 Created: 2012-02-04 Last updated: 2017-12-08Bibliographically approved

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Axner, Lilit

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