Role of Turbulence on Edge Momentum Redistribution in the TJ-II Stellarator
Journal Article
·
· Physical Review Letters
- Associacao Euratom-IST, Avenida Rovisco Pais, 1049-001 Lisbon (Portugal)
- Asociacion Euratom-Ciemat para Fusion, Avenida Complutense 22, 28040 Madrid (Spain)
Radial profiles of the parallel-radial Reynolds stress component, proportional to the cross correlation between parallel and radial fluctuating velocities, have been measured in the plasma boundary region of the TJ-II stellarator. Experimental results show the existence of significant parallel turbulent forces at plasma densities above the threshold value to trigger perpendicular ExB sheared flows. This finding provides the first experimental evidence of the role of parallel turbulence forces on edge momentum redistribution in fusion devices.
- OSTI ID:
- 20775163
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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