Two complementary eigen-based geometric properties of a vortex
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F24%3A00601678" target="_blank" >RIV/67985840:_____/24:00601678 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0238534" target="_blank" >https://doi.org/10.1063/5.0238534</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0238534" target="_blank" >10.1063/5.0238534</a>
Alternative languages
Result language
angličtina
Original language name
Two complementary eigen-based geometric properties of a vortex
Original language description
In our previous paper [V. Kolář and J. Šístek, “Orbitally compact and loose vortex regions,” Phys. Fluids 35, 121708 (2023)], the eigenvalue-based measure of orbital compactness of particle motion inside a vortex for compressible flows has been proposed. Here, a complementary eigenvector-based geometric property of cylindricity (three-dimensional /3D/ aspect) is introduced. This property is closely related to the local flow axisymmetry in the swirl plane (two-dimensional /2D/ aspect) which explains the positive response of the vortex-identification-criterion, and closely related criteria swirling strength and Rortex (Liutex), for almost no vorticity and a large (without any limitation) rate-of-strain magnitude. A relatively high correlation between orbital compactness, cylindricity, and widely used vortex-identification criteria has been found for several flow examples.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
<a href="/en/project/GA23-06159S" target="_blank" >GA23-06159S: Vortical structures: advanced identification and efficient numerical simulation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physics of Fluids
ISSN
1070-6631
e-ISSN
1089-7666
Volume of the periodical
36
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
111703
UT code for WoS article
001358007900031
EID of the result in the Scopus database
2-s2.0-85209645635