even in the TORE SUPRA Tokamak? wow. I’m impressed by turbulence getting in every time you believe the problem is tough enough

Turbulence in the TORE SUPRA Tokamak: Measurements and Validation of Nonlinear Simulations

Turbulence in the TORE SUPRA Tokamak

Phys. Rev. Lett. 102, 165005 (2009) [4 pages]<!– (4 pages) –>

Turbulence in the TORE SUPRA Tokamak: Measurements and Validation of Nonlinear Simulations

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A. Casati,1 T. Gerbaud,1,2 P. Hennequin,2 C. Bourdelle,1 J. Candy,3 F. Clairet,1 X. Garbet,1 V. Grandgirard,1 Ö. D. Gürcan,2 S. Heuraux,4 G. T. Hoang,1 C. Honoré,2 F. Imbeaux,1 R. Sabot,1 Y. Sarazin,1 L. Vermare,2 and R. E. Waltz3
1CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
2Laboratoire de Physique des Plasmas, CNRS-École Polytechnique, 91128 Palaiseau Cedex, France
3General Atomics, P.O. Box 85608, San Diego, California 92186-5608, USA
4IJL, CNRS Nancy-Université, 54052 Nancy Cedex, France
Received 18 February 2009; published 24 April 2009

Received 18 February 2009; published 24 April 2009


Turbulence measurements in TORE SUPRA tokamak plasmas have been quantitatively compared to predictions by nonlinear gyrokinetic simulations. For the first time, numerical results simultaneously match within experimental uncertainty (a) the magnitude of effective heat diffusivity, (b) rms values of density fluctuations, and (c) wave-number spectra in both the directions perpendicular to the magnetic field. Moreover, the nonlinear simulations help to revise as an instrumental effect the apparent experimental evidence of strong turbulence anisotropy at spatial scales of the order of ion-sound Larmor radius.

©2009 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.102.165005
DOI: 10.1103/PhysRevLett.102.165005
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