Modelling penetration and plasma response of a dense neutral gas jet in a post-thermal quenched plasma
作者: P.B. ParksW. Wu
作者单位: 1General Atomics, PO Box 85608, San Diego, CA 92186–5608, USA
刊名: Nuclear Fusion, 2014, Vol.54 (2)
来源数据库: Institute of Physics Journal
DOI: 10.1088/0029-5515/54/2/023002
原始语种摘要: This paper is about the dynamics of gas jet injection and propagation into the cold, current quench (CQ) discharge following the thermal quench (TQ) phase of a disruption event. Understanding the processes involved in the interpenetration between a dense, fast-moving supersonic gas jet and a magnetized plasma is fundamental to the solution of the disruption mitigation problem using massive gas injection. An analytical model was developed that provides the penetration depth of the jet in the CQ discharge. The model developed incorporates the injector, the vacuum space between injector and plasma, and the low beta CQ plasma through which the jet penetrates. The radially moving gas stagnates at some point inside the plasma by formation of a ‘bottle shock’, resulting in a certain penetration...
全文获取路径: IOP  (合作)

  • penetration 穿透
  • dense 致密的
  • plasma 深绿玉髓
  • thermal 热的
  • neutral 中性的
  • resistivity 电阻率
  • resulting 引起的
  • injector 注射器
  • vacuum 真空
  • quenched 淬火的猝熄的