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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68407700:21220/25:00383420

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10101 - Pure mathematics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Numerical Mathematics and Advanced Applications ENUMATH 2023

ISBN

978-3-031-86168-0

ISSN

1439-7358

e-ISSN

2197-7100

Počet stran výsledku

11

Strana od-do

104-114

Název nakladatele

Springer

Místo vydání

Cham

Místo konání akce

Lisbon

Datum konání akce

4. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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