A NONLOCAL METHOD LEADING TO THE DIFFERENCE-QUOTIENT TURBULENCE MODEL

Authors
EGOLF PW WEISS DA
Citation
Pw. Egolf et Da. Weiss, A NONLOCAL METHOD LEADING TO THE DIFFERENCE-QUOTIENT TURBULENCE MODEL, Helvetica Physica Acta, 69, 1996, pp. 43-44
Citations number
5
Categorie Soggetti
Physics
Journal title
Helvetica Physica Acta → ACNP
ISSN journal
00180238
Volume
69
Year of publication
1996
Supplement
2
Pages
43 - 44
Database
ISI
SICI code
0018-0238(1996)69:<43:ANMLTT>2.0.ZU;2-C
Abstract
Based on ideas of Prandtl, Hinze proposed to describe turbulence prope rties - e.g. the Reynold's shear stress - as those of a visco-elastic fluid, including a description of memory behaviour. For the time-avera ged quantities of a quasi-stationary flow an analogous non-local appro ach can be formulated. From this, by assuming a perfect coherence over a well defined distance, the difference-quotient turbulence model has been obtained.