Disentangling scaling properties in anisotropic and inhomogeneous turbulence

Citation
I. Arad et al., Disentangling scaling properties in anisotropic and inhomogeneous turbulence, PHYS REV L, 82(25), 1999, pp. 5040-5043
Citations number
15
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
25
Year of publication
1999
Pages
5040 - 5043
Database
ISI
SICI code
0031-9007(19990621)82:25<5040:DSPIAA>2.0.ZU;2-K
Abstract
We address scaling in inhomogeneous and anisotropic turbulent flows by deco mposing structure functions into their irreducible representation of the SO (3) symmetry group which are designated by j, m indices. Employing simulati ons of channel flows with Re-lambda approximate to 70 we demonstrate that d ifferent components characterized by different j display different scaling exponents, but for a given j these remain the same at different distances h am the wall. The j = 0 exponent agrees extremely well with high Re measurem ents of the scaling exponents, demonstrating the vitality of the SO(3) deco mposition.