Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00379334" target="_blank" >RIV/68407700:21220/24:00379334 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/24:00379334

Výsledek na webu

<a href="https://doi.org/10.24132/acm.2024.893" target="_blank" >https://doi.org/10.24132/acm.2024.893</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.24132/acm.2024.893" target="_blank" >10.24132/acm.2024.893</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

Popis výsledku v původním jazyce

Detached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter’s Shear Stress Transport (SST) model as well as the DES variant of the Kok’s Turbulent/Non-Turbulent model (TNT), Extra-Large Eddy Simulation (X-LES), and its newly proposed delayed and improved delayed variants (DX-LES and IDX-LES) along with the base RANS methods are compared in this paper. The comparison is made on a flow around tandem cylinders, on which mainly hybrid methods based on the one-equation Spalart-Almaras model were previously tested. The proposed models show DDES and IDDES with a different approach from the SST-based two-equation methods, which potentially improves the results and, in the case of the TNT-based DDES variant, only the blending function is dependent of the distance from the wall.

Název v anglickém jazyce

Comparison of new RANS-LES hybrid methods on a tandem cylinder problem using rough meshes

Popis výsledku anglicky

Detached eddy simulation (DES), delayed DES (DDES) and improved DDES (IDDES) hybrid RANS-LES turbulence models based on the Menter’s Shear Stress Transport (SST) model as well as the DES variant of the Kok’s Turbulent/Non-Turbulent model (TNT), Extra-Large Eddy Simulation (X-LES), and its newly proposed delayed and improved delayed variants (DX-LES and IDX-LES) along with the base RANS methods are compared in this paper. The comparison is made on a flow around tandem cylinders, on which mainly hybrid methods based on the one-equation Spalart-Almaras model were previously tested. The proposed models show DDES and IDDES with a different approach from the SST-based two-equation methods, which potentially improves the results and, in the case of the TNT-based DDES variant, only the blending function is dependent of the distance from the wall.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10102 - Applied mathematics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Applied and Computational Mechanics

ISSN

1802-680X

e-ISSN

—

Svazek periodika

18

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

14

Strana od-do

149-162

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85213795354