Minimum-Energy State of an Axisymmetric Toroidal Plasma
Minimum-Energy State of an Axisymmetric Toroidal Plasma
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轴对称环形等离子体的最低能量态
DOI：
10.1143/jpsj.62.1829
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
E. Hotta
中科院分区：
文献类型：
--
作者：
M. Suzuki;M. Saito;E. Hotta
提出了一种新的轴对称松弛平衡模型，其形式为Grad-Shafrov方程。利用Bhattacharjee和Duwar提出的约束条件(Komega0}=IntVrmp})omega(MiB A)\CDOT(MiB B){rmd}v(V)代替螺旋度，该模型包含了一个有限的压力梯度，并满足等离子体表面电流密度为零J(Rp)=0的实际等离子体边界条件.我们在大纵横比环形等离子体的极限下将该模型与其他模型进行了比较，该模型被用来模拟其他圆柱形反场箍缩模型以及更广泛的组态，如反磁和皮肤电流类型。
A new axisymmetric relaxed equilibrium model in the form of Grad-Shafranov equations is proposed. Utilizing the constraint condition \( K_{\omega 0}=\int _{V_{\rm p}} \omega {\mib A} \cdot {\mib B} {\rm d}v\) developed by Bhattacharjee and Dewar instead of the helicity, this model includes a finite pressure gradient and satisfies the practical plasma boundary condition that current density at the plasma surface become zero J ( r p )=0. We compare this model with others in the limit of a large-aspect-ratio toroidal plasma, and this model is shown to simulate other cylindrical reversed field pinch models as well as a wider class of configurations, such as diamagnetic and skin current types.