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

Result code in 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>
Alternative codes found
RIV/68407700:21220/24:00379029 RIV/60461373:22340/24:43930908
Result on the web
<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>

Result language
angličtina
Original language name
Is the proper orthogonal decomposition suitable to validate simulation of turbulent wake?
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20302 - Applied mechanics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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