Vortex and the Balance between Vorticity and Strain Rate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F19%3A00503124" target="_blank" >RIV/67985840:_____/19:00503124 - isvavai.cz</a>
Alternative codes found
RIV/67985874:_____/19:00503124
Result on the web
<a href="http://hdl.handle.net/11104/0294945" target="_blank" >http://hdl.handle.net/11104/0294945</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1155/2019/1321480" target="_blank" >10.1155/2019/1321480</a>

Result language
angličtina
Original language name
Vortex and the Balance between Vorticity and Strain Rate
Original language description
A new analysis of the vortex-identification Q-criterion and its recent modifications is presented. In this unified framework based on different approaches to averaging of the cross-sectional balance between vorticity and strain rate in 3D, new relations among the existing modifications are derived. In addition, a new method based on spherical averaging is proposed. It is applicable to compressible flows, and it inherits a duality property which allows its use for identifying high strain-rate zones together with vortices. The new quantity is applied to identification of vortices and high strain-rate zones in the flow around an inclined flat plate, in the flow past a sphere, and for the reconnection process of two Burgers vortices.
Czech name
—
Czech description
—

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

Project
<a href="/en/project/GA18-09628S" target="_blank" >GA18-09628S: Advanced flow-field analysis</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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