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把密度梯度驱动效应引入到温度梯度驱动的托卡马克边缘湍流模型当中来,在磁流体力学基础上建立了新的湍流理论,研究了这种湍流过程的物理机制,阐明了密度梯度在线性和非线性发展阶段所起的作用,并指出了它对湍流饱和的贡献,导出了静电势和密度涨落的饱和水平以及相应的粒子扩散系数。这些理论结果都与TEXT装置上的实验相符合。
The density gradient driving effect is introduced into the temperature gradient-driven turbulence model of the Tokamak edge. A new turbulence theory is established on the basis of the magnetohydrodynamics. The physical mechanism of this turbulent flow process is studied. The linear and It also points out its contribution to turbulence saturation and derives the saturation level of electrostatic potential and density fluctuations and the corresponding particle diffusion coefficient. These theoretical results are consistent with experiments on the TEXT device.