Vortex and the Balance between Vorticity and Strain Rate
Joint Authors
Source
International Journal of Aerospace Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-03-14
Country of Publication
Egypt
No. of Pages
8
Abstract EN
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.
American Psychological Association (APA)
Kolář, Václav& Šístek, Jakub. 2019. Vortex and the Balance between Vorticity and Strain Rate. International Journal of Aerospace Engineering،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1156117
Modern Language Association (MLA)
Kolář, Václav& Šístek, Jakub. Vortex and the Balance between Vorticity and Strain Rate. International Journal of Aerospace Engineering No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1156117
American Medical Association (AMA)
Kolář, Václav& Šístek, Jakub. Vortex and the Balance between Vorticity and Strain Rate. International Journal of Aerospace Engineering. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1156117
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1156117
