Nolilinear Collisional Drift-Waves near the Neutral Stable Point
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概要
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The present paper deals with the nonlinear theory of the collisional drift-wave instability near the neutral stable point. It is shown that under the periodic boundary condition in the direction of the applied magnetic field, the collisional drift-wave growing linearly excites the convective-mode, that is the disturbance normal to the magnetic field, and by means of the coherent nonlinear interaction with the convective-mode, the growih is saturated at a peak level, then the drift-wave begins to decay, and ultimately damps out. The saturation level is proportional to the linear growth rate [∝(B-B_c)/B_c] in contrast to the usual one pro-portional to the square root of the linear growth rate such as bcing given by the quasi-linear theory.
- 1981-11-15
著者
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Taniuti Tosiya
Department Of Engineering Natural Science-mathematics Chubu University
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YOSHIHARA Hiroki
Department of Physics, Nagoya University
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IWAYANAGI Tsutomu
Department of Physics, Nagoya University
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Iwayanagi Tsutomu
Department Of Physics Nagoya University
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Yoshihara Hiroki
Department Of Physics Nagoya University
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