Wavelet filtering of three-dimensional turbulence

Authors
Farge, M Pellegrino, G Schneider, K
Citation
M. Farge et al., Wavelet filtering of three-dimensional turbulence, Z ANG MA ME, 81, 2001, pp. S465-S466
Citations number
5
Categorie Soggetti
Mechanical Engineering
Journal title
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
ISSN journal
00442267 → ACNP
Volume
81
Year of publication
2001
Supplement
3
Pages
S465 - S466
Database
ISI
SICI code
0044-2267(2001)81:<S465:WFOTT>2.0.ZU;2-4
Abstract
We present a new vortex tube extraction method for three-dimensional turbul ent flows. The method is based on an orthogonal wavelet decomposition of th e vorticity vector field. The coherent part of the flow is reconstructed fr om the strongest wavelet coefficients using an universal threshold criterio n. As example we present the vortex tube extraction of three-dimensional ho mogeneous isotropic turbulence.