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Oct 13 – 18, 2014
Hotel Park Inn Pribaltiyskaya
Europe/Moscow timezone

Remote Generation of NTM Precursors by Interchange Turbulence

Oct 15, 2014, 2:00 PM
4h 45m
Green 8-9 (Hotel Park Inn Pribaltiyskaya)

Green 8-9

Hotel Park Inn Pribaltiyskaya

Saint Petersburg, Russian Federation
Poster Poster 4

Speaker

Dr Olivier Agullo (Aix-Marseille Université)

Description

Nonlinear 3D simulations are performed. A RMHD model describing the simultaneous evolution of the interchange turbulence and the tearing instability is used. We show that, through nonlinear generation of radially extended modes, turbulence generated at the plasma edge can lead to the formation of seed islands in the vicinity of the $q=2$ surface. The special role of the zonal flow in that context is explicited.
Country or International Organisation France
Paper Number TH/P4-3

Primary author

Dr Olivier Agullo (Aix-Marseille Université)

Co-authors

Prof. Abhijit Sen (Institute for Plasma Research) Mr Alexandre Poyé (CeLIA) Dr Magali Muraglia (Aix-Marseille Université - CNRS) Prof. Masatoshi Yagi (Japan Atomic Energy Agency) Nicolas Dubuit (Aix-Marseille Université - CNRS) Dr Sadruddin Benakadda (Aix-Marseille Université - CNRS) Dr Xavier Garbet (CEA - IRFM)

Presentation materials

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