Strange Attractors in Drift Wave Turbulence

Lewandowski, J.L.V.

Princeton University. Plasma Physics Laboratory.

关键词: Attractors;    Drift Waves;    70 Plasma Physics And Fusion Technology;    Degrees Of Freedom;    Kinetics;   

DOI  :  10.2172/813620
RP-ID  :  PPPL-3807
RP-ID  :  AC02-76CH03073
RP-ID  :  813620

美国|英语

来源: UNT Digital Library

【 摘 要 】

A multi-grid part-in-cell algorithm for a shearless slab drift wave model with kinetic electrons is presented. The algorithm, which is based on an exact separation of adiabatic and nonadiabatic electron responses, is used to investigate the presence of strange attractors in drift wave turbulence. Although the simulation model has a large number of degrees of freedom, it is found that the strange attractor is low-dimensional and that it is strongly affected by dissipative (collisional) effects.