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Abstract

Strong electric fields generate an E x B rotation of the equilibrium plasma. Experiments have shown that this effect could lower the anomalous transport in tokamaks. The study of the effect of these flows on the linear stability of ion temperature gradient modes has therefore been undertaken. The question is addressed solving the spectrum of the gyrokinetic equation in the full 2-dimensional poloidal plane. Results show a strong effect of E x B flows: they stabilize the ITG modes and reduce the extent of the convective cells. Study with respect to different profiles of the flow shows that the so-called curvature of flow has no effect, while the intensity of flow itself produces the strongest effect.

Additional information

Authors: MACCIO m, Centre de Recherche en Physique des Plasmas Ecole Polytechnique Federale, Lausanne (CH);VACLAVIK J, Centre de Recherche en Physique des Plasmas Ecole Polytechnique Federale, Lausanne (CH)
Bibliographic Reference: Article: Effect of E x B Flows on the Linear Stability of Ion Temperature Gradient Modes, Using a Global and Spectral Gyrokinetic Model, (1999), 1-19
Record Number: 199910911 / Last updated on: 1999-07-05
Category: PUBLICATION
Original language: en
Available languages: en
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