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Secondary instability in drift wave turbulence as a mechanism for zonal flow and avalanche formation
- Author(s): Diamond, PH
- Champeaux, S
- Malkov, M
- Das, A
- Gruzinov, I
- Rosenbluth, MN
- Holland, C
- Wecht, B
- Smolyakov, AI
- Hinton, FL
- Lin, Z
- Hahm, TS
- et al.
Published Web Location
https://doi.org/10.1088/0029-5515/41/8/310Abstract
The article reports on recent developments in the theory of secondary instability in drift-ion temperature gradient turbulence. Specifically, the article explores secondary instability as a mechanism for zonal flow generation, transport barrier dynamics and avalanche formation. These in turn are related to the space-time statistics of the drift wave induced flux, the scaling of transport with collisionality and β, and the spatio-temporal evolution of transport barriers.
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