Stabilizing and Destabilizing Effect of Shear Flow : Beyond Kelvin-Helmholtz Instability

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概要

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• Recent progress in linear spectral studies of incompressible plasma (fluid) with flows is reviewed. Mathematically, non-Hermiticity of the generating operator brings about incompleteness of the eigenvalue analysis and unremovable coupling between modes. This may lead to secular growth (algebraic in time) even if all eigenvalues exhibit stable oscillations. Physically, the stretching effect of shear flow is considered a stabilizing mechanism for various plasma instabilities; however, shear flow may equally effectively destabilize a class of plasma modes. The condition for stabilization/destabilization is discussed as well as its physical mechanisms.

• プラズマ・核融合学会の論文
• 2003-11-25

著者

• 瀧野 智哉

  Graduate School Of Frontier Sciences The University Of Tokyo

関連論文

• Stabilizing and Destabilizing Effect of Shear Flow : Beyond Kelvin-Helmholtz Instability

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