Effects of the Second Harmonic and Plasma Shaping on the Geodesic Acoustic Mode
Paper i proceeding, 2014

The effects of second harmonics of the density and temperature perturbations on the linear Geodesic Acoustic Mode (GAM) frequency and non-linear generation of the GAM are investigated, using a fluid model. We show that the second harmonics contribute to the frequency through the density gradient scale length and the wave number of the GAM. In addition, the linear frequency of the GAM is generally increased by coupling to the higher harmonic.

Författare

Johan Anderson

Chalmers, Rymd- och geovetenskap

Hans Nordman

Chalmers, Rymd- och geovetenskap, Plasmafysik och fusionsenergi

Raghvendra Singh

41st EPS conference, Berlin, 23.- 27.6.2014

P1.056 4-

Drivkrafter

Hållbar utveckling

Ämneskategorier

Fysik

Fusion, plasma och rymdfysik

Styrkeområden

Energi

Fundament

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