Influence of momentum flux correction coefficient in 2D-1D coupling

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F25%3A00635704" target="_blank" >RIV/67985840:_____/25:00635704 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/25:00383420
Result on the web
<a href="http://dx.doi.org/10.1007/978-3-031-86169-7_11" target="_blank" >http://dx.doi.org/10.1007/978-3-031-86169-7_11</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-031-86169-7_11" target="_blank" >10.1007/978-3-031-86169-7_11</a>

Result language
angličtina
Original language name
Influence of momentum flux correction coefficient in 2D-1D coupling
Original language description
This paper aims to assess the influence of the momentum flux correction coefficient in the coupled 2D-1D simulations. The study presents analytical solutions for the momentum correction coefficient in both steady and unsteady time-periodic scenarios. In the case of steady flow, an analytically precise value is determined for incompressible flow in a 2D planar channel and 3D tube. Additionally, a simple 2D-1D coupled model is introduced to capture some essential features of oscillatory air flow. This model combines the flow of incompressible viscous fluid in a 2D rigid channel, solved using a simple finite-difference method and immersed boundary setting, with a simplified 1D FSI model considering channel with elastic walls. Using this coupled model, the influence of both time-dependent and constant values of the momentum flux correction coefficient in the unsteady time-periodic case are examined. The results indicate that this coefficient, has only minor importance in the considered case. These findings contribute to a better understanding of this coefficient role within 1D models applicable to respiratory system simulations.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Numerical Mathematics and Advanced Applications ENUMATH 2023
ISBN
978-3-031-86168-0
ISSN
1439-7358
e-ISSN
2197-7100
Number of pages
11
Pages from-to
104-114
Publisher name
Springer
Place of publication
Cham
Event location
Lisbon
Event date
Sep 4, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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