Published in

American Institute of Physics, Physics of Fluids, 3(24), p. 035108, 2012

DOI: 10.1063/1.3694807

Links

Tools

Export citation

Search in Google Scholar

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

Journal article published in 2012 by Michael Wilczek, Benjamin Kadoch, Kai Schneider ORCID, Rudolf Friedrich, Marie Farge ORCID,
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Orange circle
Published version: archiving restricted
Upload
Policy details
Data provided by SHERPA/RoMEO

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.