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Type: Artigo de periódico
Title: Order and chaos in ETG-driven drift-dissipative waves with sheared flows
Author: Mirza, AM
Rafiq, T
Qamar, A
Murtaza, G
Shukla, PK
Faria, RT
Abstract: We derive a system of nonlinear equations that govern the dynamics of low-frequency short-wavelength electromagnetic wares in the presence of equilibrium density, temperature, magnetic field and velocity gradients. In the linear limit, a local dispersion relation is obtained and analyzed. New eta(e)-driven electromagnetic drift modes and instabilities are shown to exist. In the nonlinear case, the temporal behaviour of a nonlinear dissipative sl-stem can be written in the form of Lorenz- and Stenflo-type equations that admit chaotic trajectories. On the other hand, the stationary solutions of the nonlinear system can be represented in the form of dipolar and vortex-chain solutions.
Country: EUA
Editor: Cambridge Univ Press
Citation: Journal Of Plasma Physics. Cambridge Univ Press, v. 62, n. 531, n. 540, 1999.
Rights: embargo
Identifier DOI: 10.1017/S0022377899008089
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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