Zonal flows near marginal stability in drift wave transport
Artikel i vetenskaplig tidskrift, 2015

The Dimits nonlinear upshift has for the first time been explained with good quantitative agreement. This was done with the reactive toroidal advanced fluid model. This is also the first time that the Dimits shift has been simulated in a transport code. The upshift of the critical gradient for transport is due to the fluid resonance, enhancing the zonal flow and the finite width is due to detuning of the resonance by the linear growth rate.

zonal flows

nonlinear upshift

drift waves

Författare

G.Q. Wang

Institute of Plasma Physics Chinese Academy of Sciences

Chinese Academy of Sciences

J. Ma

Institute of Plasma Physics Chinese Academy of Sciences

Chinese Academy of Sciences

Jan Weiland

Chalmers, Teknisk fysik, Nukleär teknik

Physica Scripta

0031-8949 (ISSN)

Vol. 90 6 Art. no. 065604-

Drivkrafter

Hållbar utveckling

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1088/0031-8949/90/6/065604