Average corotation of line segments near a point and vortex identification

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985840%3A_____%2F13%3A00398283" target="_blank" >RIV/67985840:_____/13:00398283 - isvavai.cz</a>

Alternative codes found

RIV/67985874:_____/13:00398283

Result on the web

<a href="http://dx.doi.org/10.2514/1.J052330" target="_blank" >http://dx.doi.org/10.2514/1.J052330</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2514/1.J052330" target="_blank" >10.2514/1.J052330</a>

Result language

angličtina

Original language name

Average corotation of line segments near a point and vortex identification

Original language description

An easy-to-interpret kinematic quantity measuring the average corotation of material line segments near a point is introduced and applied to vortex identification. At a given point, the vector of average corotation of line segments is defined as the average of the instantaneous local rigid-body rotation over ?all planar cross sections passing through the examined point. The vortex-identification method based on average corotation is a one-parameter, region-type local method sensitive to the axial stretching rate as well as to the inner configuration of the velocity gradient tensor. The method is derived from a well-defined interpretation of the local flow kinematics to determine the ?plane of swirling and is also applicable to compressible and variable-density flows. Practical application to direct numerical simulation datasets includes a hairpin vortex of boundary-layer transition, the reconnection process of two Burgers vortices, a flow around an inclined flat plate, and a flow aroun

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BA - General mathematics

OECD FORD branch

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Project

<a href="/en/project/IAA200600801" target="_blank" >IAA200600801: Decomposition techniques for flow-field analysis</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

AIAA Journal

ISSN

0001-1452

e-ISSN

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Volume of the periodical

51

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

2678-2694

UT code for WoS article

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EID of the result in the Scopus database

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