Numerical modelling of generalized Newtonian fluids in bypass tube

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F19%3A00335175" target="_blank" >RIV/68407700:21220/19:00335175 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21260/19:00335175

Výsledek na webu

<a href="https://doi.org/10.1007/s10444-019-09684-y" target="_blank" >https://doi.org/10.1007/s10444-019-09684-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10444-019-09684-y" target="_blank" >10.1007/s10444-019-09684-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical modelling of generalized Newtonian fluids in bypass tube

Popis výsledku v původním jazyce

The following paper describes a numerical simulation of a complete bypass of a stenosed human artery. The considered geometry consists of the narrowed host tube and the bypass graft with a 45-degree angle of connection. Different diameters of the narrowing are tested. Blood is the fluid with shear rate-dependent viscosity; therefore, various rheology mathematical models for generalized Newtonian fluids are considered, namely Cross model, modified Cross model, Carreau model, and Carreau-Yasuda model. The fundamental system of equations is based on the system of generalized Navier-Stokes equations. Generalized Newtonian fluids flow in a bypass tube is numerically simulated by using a SIMPLE algorithm included in the open-source CFD tool, OpenFOAM. The aim of this work is to compare the numerical results for the different mathematical models of the viscosity with the changing diameter of the narrowed channel.

Název v anglickém jazyce

Numerical modelling of generalized Newtonian fluids in bypass tube

Popis výsledku anglicky

The following paper describes a numerical simulation of a complete bypass of a stenosed human artery. The considered geometry consists of the narrowed host tube and the bypass graft with a 45-degree angle of connection. Different diameters of the narrowing are tested. Blood is the fluid with shear rate-dependent viscosity; therefore, various rheology mathematical models for generalized Newtonian fluids are considered, namely Cross model, modified Cross model, Carreau model, and Carreau-Yasuda model. The fundamental system of equations is based on the system of generalized Navier-Stokes equations. Generalized Newtonian fluids flow in a bypass tube is numerically simulated by using a SIMPLE algorithm included in the open-source CFD tool, OpenFOAM. The aim of this work is to compare the numerical results for the different mathematical models of the viscosity with the changing diameter of the narrowed channel.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Advances in Computational Mathematics

ISSN

1019-7168

e-ISSN

1572-9044

Svazek periodika

45

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

17

Strana od-do

2047-2063

Kód UT WoS článku

000480573200017

EID výsledku v databázi Scopus

2-s2.0-85070414202