Numerical Study of Generalized Newtonian Fluids Flow in Bypass

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F25%3A00390155" target="_blank" >RIV/68407700:21220/25:00390155 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-031-86169-7_3" target="_blank" >https://doi.org/10.1007/978-3-031-86169-7_3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-031-86169-7_3" target="_blank" >10.1007/978-3-031-86169-7_3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Study of Generalized Newtonian Fluids Flow in Bypass

Popis výsledku v původním jazyce

This paper deals with the numerical solution of blood flow in a channel with narrowing and bypass. The paper is divided into a numerical simulation of fluid flow in a constricted channel without bypass and a numerical study of a narrowed channel with bypass with different connection angles. This part deals with the values of the connection angle between 30 and 60 degrees. The mathematical model is based on the three-dimensional generalized Navier-Stokes equations, where either a Newtonian or a non-Newtonian rheological model is considered. In the case of non-Newtonian models, the Carreau model and the Power law model are used to solve the shear nature of the blood flow. Numerical results are compared by measuring wall shear stress and wall pressure distribution. Numerical tests are performed to verify whether and how much such a change depends on the angle of connection or on the generalized Newtonian model used. Numerical results are obtained using OpenFOAM and are compared for all values of the bypass connection angle and selected rheological viscosity models.

Název v anglickém jazyce

Numerical Study of Generalized Newtonian Fluids Flow in Bypass

Popis výsledku anglicky

This paper deals with the numerical solution of blood flow in a channel with narrowing and bypass. The paper is divided into a numerical simulation of fluid flow in a constricted channel without bypass and a numerical study of a narrowed channel with bypass with different connection angles. This part deals with the values of the connection angle between 30 and 60 degrees. The mathematical model is based on the three-dimensional generalized Navier-Stokes equations, where either a Newtonian or a non-Newtonian rheological model is considered. In the case of non-Newtonian models, the Carreau model and the Power law model are used to solve the shear nature of the blood flow. Numerical results are compared by measuring wall shear stress and wall pressure distribution. Numerical tests are performed to verify whether and how much such a change depends on the angle of connection or on the generalized Newtonian model used. Numerical results are obtained using OpenFOAM and are compared for all values of the bypass connection angle and selected rheological viscosity models.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

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, Volume 2

ISBN

978-3-031-86168-0

ISSN

1439-7358

e-ISSN

—

Počet stran výsledku

11

Strana od-do

23-33

Název nakladatele

Springer

Místo vydání

Cham

Místo konání akce

Lisabon

Datum konání akce

4. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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