|Title:||Energy and Entropy in Turbulence Decompositions|
|Citation:||URUBA, V. Energy and Entropy in Turbulence Decompositions. Entropy, 2019, roč. 21, č. 2, s. 1-18. 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.|
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|Appears in Collections:||Články / Articles (CEV)|
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