Details

Autor(en) / Beteiligte

• Tatsuno, T.
• Volponi, F.
• Yoshida, Z.

Titel

Transient phenomena and secularity of linear interchange instabilities with shear flows in homogeneous magnetic field plasmas

Ist Teil von

• Physics of plasmas, 2001-02, Vol.8 (2), p.399-406

Erscheinungsjahr

2001

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Transient and secular behaviors of interchange fluctuations are analyzed in an ambient shear flow by invoking Kelvin’s method of shearing modes. Because of its non-Hermitian property, complex transient phenomena can occur in a shear flow system. The combined effect of shear flow mixing and Alfvén wave propagation overcomes the instability driving force at sufficiently large time, and damps all fluctuations of the magnetic flux. On the other hand, electrostatic perturbations can be destabilized for sufficiently strong interchange drive. The time asymptotic behavior in each case is algebraic (nonexponential).