| Title: | Energy and Entropy in Turbulence Decompositions |
| Authors: | Uruba, Václav |
| Citation: | URUBA, V. Energy and Entropy in Turbulence Decompositions. Entropy, 2019, roč. 21, č. 2, s. 1-18. ISSN 1099-4300. |
| Issue Date: | 2019 |
| Publisher: | MDPI |
| Document type: | článek article |
| URI: | 2-s2.0-85061962673 http://hdl.handle.net/11025/34805 |
| ISSN: | 1099-4300 |
| Keywords in different language: | Energy;Entropy;Turbulence;Decompositions |
| Abstract in different language: | The role of energy and entropy in the decomposition of turbulent velocity flow-fields is shown in this paper. Decomposition methods based on the energy concept are taken into account—proper orthogonal decomposition (POD) and its extension bi-orthogonal decomposition (BOD). The methods are well known; however, various versions are used and the interpretation of results is not straightforward. To make this clearer, the specific definition of modes is suggested and specified; moreover, energy- and entropy-motivated views on the decomposed modes are presented. This concept could offer new possibilities in the physical interpretation of modes and in reduced-order modeling (ROM) strategy efficiency evaluation. |
| Rights: | © MDPI © Creative Commons Attribution License 4.0 |
| Appears in Collections: | Články / Articles (CEV) OBD |
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| File | Size | Format | |
|---|---|---|---|
| entropy-21-00124-v2.pdf | 5,04 MB | Adobe PDF | View/Open |
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