Is the proper orthogonal decomposition suitable to validate simulation of turbulent wake?

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F24%3A00601560" target="_blank" >RIV/61388998:_____/24:00601560 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/24:00379029 RIV/60461373:22340/24:43930908

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0167610524003167" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167610524003167</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jweia.2024.105953" target="_blank" >10.1016/j.jweia.2024.105953</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Is the proper orthogonal decomposition suitable to validate simulation of turbulent wake?

Popis výsledku v původním jazyce

To evaluate the suitability of the proper orthogonal decomposition (POD) for validating a simulated flow dynamics, we selected the flow in the wake behind a circular cylinder at Reynolds number of ≈ 5000 as a well studied canonical problem. The flow was simulated via ????-????SST detached-eddy simulation (DES) and, on selected planes of measurement (PoM), investigated experimentally by a time-resolved variant of the particle image velocimetry (PIV) and stereo-PIV methods. A standard model validation comprising, among other, comparison of the drag coefficient, or separation angle, and of the averaged flow properties and turbulence spectra, was carried out. Subsequently, both the PIV and the numerical data on the selected planes in the geometry were analyzed by POD, and a fully 3D POD analysis of the numerical data was used to evaluate the credibility of he planar POD as a tool for dynamic model validation.

Název v anglickém jazyce

Is the proper orthogonal decomposition suitable to validate simulation of turbulent wake?

Popis výsledku anglicky

To evaluate the suitability of the proper orthogonal decomposition (POD) for validating a simulated flow dynamics, we selected the flow in the wake behind a circular cylinder at Reynolds number of ≈ 5000 as a well studied canonical problem. The flow was simulated via ????-????SST detached-eddy simulation (DES) and, on selected planes of measurement (PoM), investigated experimentally by a time-resolved variant of the particle image velocimetry (PIV) and stereo-PIV methods. A standard model validation comprising, among other, comparison of the drag coefficient, or separation angle, and of the averaged flow properties and turbulence spectra, was carried out. Subsequently, both the PIV and the numerical data on the selected planes in the geometry were analyzed by POD, and a fully 3D POD analysis of the numerical data was used to evaluate the credibility of he planar POD as a tool for dynamic model validation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20302 - Applied mechanics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Journal of Wind Engineering and Industrial Aerodynamics

ISSN

0167-6105

e-ISSN

1872-8197

Svazek periodika

255

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

27

Strana od-do

105953

Kód UT WoS článku

001407783300001

EID výsledku v databázi Scopus

2-s2.0-85209565308