Experimental evidence for the intimate interaction among sheared flows, Eddy structures, Reynolds stress and zonal flows across transition to improved confinement
- Author
- Ilya Shesterikov (UGent) , Y Xu, GR Tynan, PH Diamond, S Jachmich, P Dumortier, M Vergote, M Van Schoor and Guido Van Oost (UGent)
- Organization
- Abstract
- Dedicated experiments have been carried out at the TEXTOR tokamak in biasing-induced improved confinement regimes using Langmuir probe and GPI measurements. The results show the first evidence for the intimate interaction among sheared flows, eddy structures, Reynolds stress, zonal flows, and ambient fluctuations during a transition to an improved confinement. The sheared flows impose dynamic effects on turbulence structures, resulting in generation of Reynolds stress and zonal flows and eventually the suppression of background fluctuation levels via nonlinear energy transfer processes. The latter may therefore trigger a transition to the H mode.
- Keywords
- TOKAMAK, EDGE TURBULENCE, TEXTOR
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Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-4110154
- MLA
- Shesterikov, Ilya, et al. “Experimental Evidence for the Intimate Interaction among Sheared Flows, Eddy Structures, Reynolds Stress and Zonal Flows across Transition to Improved Confinement.” PHYSICAL REVIEW LETTERS, vol. 111, no. 5, 2013, doi:10.1103/PhysRevLett.111.055006.
- APA
- Shesterikov, I., Xu, Y., Tynan, G., Diamond, P., Jachmich, S., Dumortier, P., … Van Oost, G. (2013). Experimental evidence for the intimate interaction among sheared flows, Eddy structures, Reynolds stress and zonal flows across transition to improved confinement. PHYSICAL REVIEW LETTERS, 111(5). https://doi.org/10.1103/PhysRevLett.111.055006
- Chicago author-date
- Shesterikov, Ilya, Y Xu, GR Tynan, PH Diamond, S Jachmich, P Dumortier, M Vergote, M Van Schoor, and Guido Van Oost. 2013. “Experimental Evidence for the Intimate Interaction among Sheared Flows, Eddy Structures, Reynolds Stress and Zonal Flows across Transition to Improved Confinement.” PHYSICAL REVIEW LETTERS 111 (5). https://doi.org/10.1103/PhysRevLett.111.055006.
- Chicago author-date (all authors)
- Shesterikov, Ilya, Y Xu, GR Tynan, PH Diamond, S Jachmich, P Dumortier, M Vergote, M Van Schoor, and Guido Van Oost. 2013. “Experimental Evidence for the Intimate Interaction among Sheared Flows, Eddy Structures, Reynolds Stress and Zonal Flows across Transition to Improved Confinement.” PHYSICAL REVIEW LETTERS 111 (5). doi:10.1103/PhysRevLett.111.055006.
- Vancouver
- 1.Shesterikov I, Xu Y, Tynan G, Diamond P, Jachmich S, Dumortier P, et al. Experimental evidence for the intimate interaction among sheared flows, Eddy structures, Reynolds stress and zonal flows across transition to improved confinement. PHYSICAL REVIEW LETTERS. 2013;111(5).
- IEEE
- [1]I. Shesterikov et al., “Experimental evidence for the intimate interaction among sheared flows, Eddy structures, Reynolds stress and zonal flows across transition to improved confinement,” PHYSICAL REVIEW LETTERS, vol. 111, no. 5, 2013.
@article{4110154,
abstract = {{Dedicated experiments have been carried out at the TEXTOR tokamak in biasing-induced improved confinement regimes using Langmuir probe and GPI measurements. The results show the first evidence for the intimate interaction among sheared flows, eddy structures, Reynolds stress, zonal flows, and ambient fluctuations during a transition to an improved confinement. The sheared flows impose dynamic effects on turbulence structures, resulting in generation of Reynolds stress and zonal flows and eventually the suppression of background fluctuation levels via nonlinear energy transfer processes. The latter may therefore trigger a transition to the H mode.}},
articleno = {{055006}},
author = {{Shesterikov, Ilya and Xu, Y and Tynan, GR and Diamond, PH and Jachmich, S and Dumortier, P and Vergote, M and Van Schoor, M and Van Oost, Guido}},
issn = {{0031-9007}},
journal = {{PHYSICAL REVIEW LETTERS}},
keywords = {{TOKAMAK,EDGE TURBULENCE,TEXTOR}},
language = {{eng}},
number = {{5}},
pages = {{5}},
title = {{Experimental evidence for the intimate interaction among sheared flows, Eddy structures, Reynolds stress and zonal flows across transition to improved confinement}},
url = {{http://dx.doi.org/10.1103/PhysRevLett.111.055006}},
volume = {{111}},
year = {{2013}},
}
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