流体-粒子模型及托卡马克等离子体稳态粒子流

FLUID PARTICLE MODEL AND STEADY STATE PARTICLE FLUXES IN THE TOKAMAK PLASMA

基于俘获粒子与非俘获粒子对外力作用的响应截然不同，本文提出了一个简单而有效描述托卡马克等离子体响应特征的“流体－粒子”模型。作为该模型的一个应用，本文解析地推导了稳态托卡马克等离子体环向粒子流、极向粒子流和径向粒子流，并给出与径向粒子流相关的广义欧姆定律。

Based on the quite different responses of the trapped and untrapped particles to external forces, a new useful model, called fluid particle model, is proposed for describing tokamak plasma characterized by the existence of trapped particles. As an application of this model to steady state tokamak plasma, the toroidal, poloidal and radial particle fluxes are analytically derived. From these fluxes, a generalized Ohm s law related to the radial particle flux is developed. The expressions for neoclassical electrical conductivity and bootstrap current, which seem to be more general both in the form and in the range of application, are obtained.