English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/209599
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Formulation of exactly balanced solvers for blood flow in elastic vessels and their application to collapsed states

AuthorsMurillo, J.; Navas-Montilla, A.; García-Navarro, Pilar
KeywordsARoe
HLLS
Positivity preserving
Flow limitation
Extreme collapse
Stability
Issue Date30-May-2019
PublisherElsevier
CitationComputers and Fluids 186: 74-98 (2019)
AbstractIn this work, numerical solvers based on extensions of the Roe and HLL schemes are adapted to deal with test cases involving extreme collapsing conditions in elastic vessels. To achieve this goal, the system is transformed to provide a conservation–law form, allowing to define Rankine–Hugoniot conditions. The approximate solvers allow to describe the inner states of the solution. Therefore, source term fixes can be used to prevent unphysical values of vessel area and, at the same time, the eigenvalues of the system control stability. Numerical solvers of different order are tested using a wide variety of Riemann problems, including extreme vessel collapse and blockage. In all cases, the robustness of the approximate solvers presented here is checked using first and third order methods in time and space, using the WENO reconstruction scheme in combination with the TVDRK3 method.
Publisher version (URL)https://doi.org/10.1016/j.compfluid.2019.04.008
URIhttp://hdl.handle.net/10261/209599
DOI10.1016/j.compfluid.2019.04.008
ISSN0045-7930
Appears in Collections:(LIFTEC) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf59,24 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.