BIP! Finder - Hamiltonian structure and stability analysis of a reduced four-field model for plasmas in the presence of a strong guide field

2012 • Hamiltonian structure and stability analysis of a reduced four-field model for plasmas in the presence of a strong guide field

Authors: Tassi Emanuele; Ratiu Tudor; Lazzaro E.

Venue: Journal of Physics: Conference Series

Type: Publication

Abstract: We analyze the collisionless and inviscid limit of a reduced fluid model for tokamak plasma dynamics. We show that the model under consideration possesses a noncanonical Hamiltonian structure with four infinite families of Casimir invariants. Sufficient conditions for energy stability are derived and formulated in terms of requirements on the current, electron pressure, and parallel ion velocity gradients, as well as on the ion temperature. In particular, the stability condition requires a gradient of the parallel flow in the presence of ion te... (read more)

Impact:

6.811917E-10 2.8058562E-9 1 0

/ Attention: 0 4

Topics: Mechanics Classical mechanics

DOI: 10.1088/1742-6596/401/1/012023

External links: Crossref OpenAIRE

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