反常电子粘滞性与锯齿崩塌

ANOMALOUS ELECTRON VISCOSITY AND SAWTOOTH CRASH

本文研究了反常电子热导产生的反常横向电子粘滞性对锯齿振荡现象的影响，得出了新的锯齿崩塌时间，解释了大托卡马克上的快崩塌过程。对于不同的反常输运模型，得到了不同的崩塌时间对电子温度的依赖关系，说明了反常粘滞性在高温下起着主要的作用。根据崩塌时间估算出的反常热导对温度的定标关系与耗散漂移波理论的结论基本相同。

おhe purpose of this paper is to investigate the effect of anomalous electron viscosity caused by anomalous thermal diffusion on tokamak sawteeth. A new reconnection rate is given and it is in agreement with that given by large devices. Considering the different anomalous transport model, some results are obtained. It is shown that anomalous viscosity is more important than resistivity for plasma at high temperature. Based on sawtooth crash time, we get the relation between anomalous thermal diffusion and temperature, it is in agreement with the dissipative trappedelectron drift model.