Fixed boundary toroidal plasma equilibria with toroidal flows
Fixed boundary toroidal plasma equilibria with toroidal flows
复制标题
具有环形流的固定边界环形等离子体平衡
DOI:
10.1063/1.4947028
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发表时间:
2016-04
期刊:
影响因子:
--
通讯作者:
Nong Xiang
中科院分区:
文献类型:
--
作者:
Yan Qiang Hu;Ye Min Hu;Nong Xiang
The fixed boundary toroidal plasma equilibria with toroidalflows are investigated by solving the modified Grad-Shafranov equation numerically in the cylindrical coordinate system. For normal equilibrium configurations with geometry and profiles similar to usual tokamaks with no flow, it is found that the effect of flow is to lead to an outward shift of the magnetic flux surfaces, together with the profiles of pressure, and mass and current densities. The shifts could become significant when the toroidalflowMach number exceeds 0.5. For non-conventional current profiles, even for the usual tokamak geometry, novel current reversal equilibrium configurations may result, sometimes with changed topology in the poloidal flux function. This change in the topology of plasma equilibrium can be attributed to the large toroidalflow. The computed results may correspond to situations of intense tangential injection during the low toroidal current phase in expected experimental situations.
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