The Magneto-Rotational Instability Near Threshold: Spatio-Temporal Amplitude Equation and Saturation
نویسندگان
چکیده
منابع مشابه
The Magneto-rotational Instability near Threshold: Spatio-temporal Amplitude Equation and Saturation
We show, by means of a perturbative weakly nonlinear analysis, that the axisymmetric magneto-rotational instability (MRI) in a magnetic Taylor-Couette (mTC) flow in a thin-gap gives rise, for very small magnetic Prandtl numbers (Pm), to a real Ginzburg-Landau equation for the disturbance amplitude. The saturation amplitude As is found to scale in this regime as P m, with 1/2 < δ < 2/3 (dependin...
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ژورنال
عنوان ژورنال: EAS Publications Series
سال: 2009
ISSN: 1633-4760,1638-1963
DOI: 10.1051/eas/0938018