Secondary instability in drift wave turbulence as a mechanism for zonal flow and avalanche formation

Authors
Diamond, PH Champeaux, S Malkov, M Das, A Gruzinov, I Rosenbluth, MN Holland, C Wecht, B Smolyakov, AI Hinton, FL Lin, Z Hahm, TS
Citation
Ph. Diamond et al., Secondary instability in drift wave turbulence as a mechanism for zonal flow and avalanche formation, NUCL FUSION, 41(8), 2001, pp. 1067-1080
Citations number
50
Categorie Soggetti
Physics
Journal title
NUCLEAR FUSION
ISSN journal
00295515 → ACNP
Volume
41
Issue
8
Year of publication
2001
Pages
1067 - 1080
Database
ISI
SICI code
0029-5515(200108)41:8<1067:SIIDWT>2.0.ZU;2-D
Abstract
The article reports oil recent developments, in the theory of secondary ins tability in drift ion temperature gradient turbulence. Specifically, the ar ticle explores secondary instability as a mechanism for zonal flow generati on, transport barrier dynamics and avalanche formation. These in turn are r elated to the space time statistics of the drift wave induced flux, the sca ling of transport with collisionality and beta, and the spatio-temporal evo lution of transport barriers.