Application of vanishing diffusion stabilization in Oldroyd-B fluid flow simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F23%3A00571367" target="_blank" >RIV/67985840:_____/23:00571367 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/s42452-023-05348-1" target="_blank" >https://doi.org/10.1007/s42452-023-05348-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s42452-023-05348-1" target="_blank" >10.1007/s42452-023-05348-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of vanishing diffusion stabilization in Oldroyd-B fluid flow simulations

Popis výsledku v původním jazyce

Two different methods of artificial diffusion stabilization of the numerical simulations of steady Oldroyd-B fluids flows are presented. They are based on the idea of vanishing in time added stabilization terms which are only present during the initial stage of time-marching process towards the steady state solution. These extra terms naturally vanish and do not affect the final result. The numerical simulations are built on a simple steady 2D case of Oldroyd-B fluid flow in a symmetrical corrugated channel. Numerical solver uses finite element discretization in space and characteristic Galerkin method for pseudo-time discretization. Numerical results are presented in the form of isolines and graphs of selected flow variables, to assess the possible efficiency of the different stabilization techniques used.

Název v anglickém jazyce

Application of vanishing diffusion stabilization in Oldroyd-B fluid flow simulations

Popis výsledku anglicky

Two different methods of artificial diffusion stabilization of the numerical simulations of steady Oldroyd-B fluids flows are presented. They are based on the idea of vanishing in time added stabilization terms which are only present during the initial stage of time-marching process towards the steady state solution. These extra terms naturally vanish and do not affect the final result. The numerical simulations are built on a simple steady 2D case of Oldroyd-B fluid flow in a symmetrical corrugated channel. Numerical solver uses finite element discretization in space and characteristic Galerkin method for pseudo-time discretization. Numerical results are presented in the form of isolines and graphs of selected flow variables, to assess the possible efficiency of the different stabilization techniques used.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10101 - Pure mathematics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

SN Applied Sciences

ISSN

2523-3963

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

21

Strana od-do

135

Kód UT WoS článku

000968325600001

EID výsledku v databázi Scopus

2-s2.0-85152568667