ANOMALOUS SCALING AND STRUCTURE INSTABILITY IN 3-DIMENSIONAL PASSIVE SCALAR TURBULENCE

Authors
CHEN SY CAO NZ
Citation
Sy. Chen et Nz. Cao, ANOMALOUS SCALING AND STRUCTURE INSTABILITY IN 3-DIMENSIONAL PASSIVE SCALAR TURBULENCE, Physical review letters, 78(18), 1997, pp. 3459-3462
Citations number
38
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
18
Year of publication
1997
Pages
3459 - 3462
Database
ISI
SICI code
0031-9007(1997)78:18<3459:ASASII>2.0.ZU;2-L
Abstract
The anomalous scaling phenomena of three-dimensional passive scalar tu rbulence are studied using high resolution direct numerical simulation . The inertial range scaling exponents of the passive scalar increment and the scalar dissipation are obtained. The connection between the i ntermittency structure and the scaling exponent is examined and the st ructure instability of the high amplitude scalar dissipation is used t o clarify previous experimental results for the scaling exponents.