论文标题
在国家球形圆环实验中，同轴螺旋注射模拟过程中的浆体形成
Plasmoids formation during simulations of coaxial helicity injection in the National Spherical Torus Experiment
论文作者
论文摘要
在没有任何先前存在的不稳定性的情况下，在大规模环形融合等离子体中模拟的模拟首次通过模拟预测了伸长的甜面标电流片和向浆质不稳定性的过渡。通过电阻性MHD模拟在国家球形圆环实验（NSTX）中的瞬时同轴螺旋注射（CHI）实验的电阻MHD模拟证明了浆液不稳定。在这些逼真的认识中，已经观察到了等离子不稳定性的基本特征，包括快速重新连接率在内的理论。由模拟的动机，已经重新审视了实验摄像头图像，并暗示了在NSTX中重新连接浆样的存在。此处观察到的全球，系统大小的浆体形成也应对天体物理重新连接（例如快速喷发太阳事件）具有很大的影响。
Formation of an elongated Sweet-Parker current sheet and a transition to plasmoid instability has for the first time been predicted by simulations in a large-scale toroidal fusion plasma in the absence of any pre-existing instability. Plasmoid instability is demonstrated through resistive MHD simulations of transient Coaxial Helicity Injection (CHI) experiments in the National Spherical Torus Experiment (NSTX).Consistent with the theory, fundamental characteristics of the plasmoid instability, including fast reconnection rate, have been observed in these realistic simulations. Motivated by the simulations, experimental camera images have been revisited and suggest the existence of reconnecting plasmoids in NSTX. Global, system-size plasmoid formation observed here should also have strong implications for astrophysical reconnection, such as rapid eruptive solar events.
