Heat Transport due to the Collisionless Tearing Instabilities

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概要

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• Collisionless tearing instabilities and the associated electron heat transport are investigated by using a two-and-one-half dimensional particle simulation code. It is shown that a collisionless drift tearing instability saturates at a low amplitude and turns into a nonlinear pure tearing instability. The electron internal energy profile is flattened within the magnetic island. The electron heat conductivity obtained from the heat flow across the singular surface is proportional to W^4 in the linear phase and to (dW/dt)W^2 in the nonlinear phase of the tearing instability. Here W is the half width of the magnetic island. A theoretical model to explain these results is also presented.

• 核融合科学研究所の論文

著者

• Katanuma I.

  Research Information Center Institute Of Plasma Physics Nagoya University

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• Heat Transport due to the Collisionless Tearing Instabilities

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