Akira Hasegawa (Author)
Kunioki Mima (Author)
European Physical Journal H
Volume: 43
Issue: 4
Pages: 499-521
Publication date: 2018
Language: English
This paper elucidates the close connections between hydrodynamic models of two-dimensional fluids and reduced models of plasma dynamics in the presence of a strong magnetic field. The key element is the similarity of the Coriolis force to the Lorentz force. The reduced plasma model, the Hasegawa–Mima equation, is equivalent to the two-dimensional ion vortex equation. The paper discusses the history of the Hasegawa–Mima model and that of a related reduced system called the Hasegawa–Wakatani model. The 2D fluid ↔ magnetized plasma analogy is exploited to argue that magnetized plasma turbulence exhibits a dual cascade, including an inverse cascade of energy. Generation of ordered mesoscopic flows in plasmas (akin to zonal jets) is also explained. The paper concludes with a brief explanation of the relevance of the quasi-2D dynamics to aspects of plasma confinement physics.
...MoreArticle Patrick H. Diamond; Uriel Frisch; Yves Pomeau (2018) Editorial introduction to the special issue “Plasma physics in the 20th century as told by players”. European Physical Journal H (pp. 337-353).
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