Experimental Evidence of Self-Regulation of Fluctuations by Time-Varying Flows
- 8 January 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 88 (4) , 045001
- https://doi.org/10.1103/physrevlett.88.045001
Abstract
We report the first extended experimental results indicating that radially localized time-varying potential structures, which possess many of the characteristics of zonal flows, are generated by strong fluctuations. Experiments performed in the H-1 heliac show that these poloidally symmetric flows are nonlinearly coupled to other fluctuations and are responsible for significant modifications in fluctuations and in the fluctuation-driven transport.Keywords
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