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  Conditional vorticity budget of coherent and incoherent flow contributions in fully developed homogeneous isotropic turbulence

Wilczek, M., Kadoch, B., Schneider, K., Friedrich, R., & Farge, M. (2012). Conditional vorticity budget of coherent and incoherent flow contributions in fully developed homogeneous isotropic turbulence. Physics of Fluids, 24(3): 035108. doi:10.1063/1.3694807.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0003-DE51-8 Version Permalink: https://hdl.handle.net/21.11116/0000-0003-DE52-7
Genre: Journal Article

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 Creators:
Wilczek, Michael1, Author           
Kadoch, Benjamin, Author
Schneider, Kai, Author
Friedrich, Rudolf, Author
Farge, Marie, Author
Affiliations:
1Max Planck Research Group Theory of Turbulent Flows, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2266693              

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 Abstract: We investigate the conditional vorticity budget of fully developed
three-dimensional homogeneous isotropic turbulence with respect to
coherent and incoherent flow contributions. The coherent vorticity
extraction based on orthogonal wavelets allows to decompose the
vorticity field into coherent and incoherent contributions, of which the
latter are noise-like. The impact of the vortex structures observed in
fully developed turbulence on statistical balance equations is
quantified considering the conditional vorticity budget. The connection
between the basic structures present in the flow and their statistical
implications is thereby assessed. The results are compared to those
obtained for large-and small-scale contributions using a Fourier
decomposition, which reveals pronounced differences. (C) 2012 American
Institute of Physics. {[}http://dx.doi.org/10.1063/1.3694807]

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Language(s): eng - English
 Dates: 2012-03-202012
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/1.3694807
BibTex Citekey: 000302224600035
 Degree: -

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Title: Physics of Fluids
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, N.Y. [etc.] : American Institute of Physics
Pages: 15 Volume / Issue: 24 (3) Sequence Number: 035108 Start / End Page: - Identifier: ISSN: 0031-9171
CoNE: https://pure.mpg.de/cone/journals/resource/954928595037_1