The here presented work studies the dynamics of filaments using 3D fluid simulations in the presence of detached background profiles. It was found that evolving the neutrals on the time-scale of the filament did not have a significant impact on the dynamics of the filament. In general a decreasing filament velocity with increasing plasma background density has been observed, with the exception of detachment onset, where a temporarily increase in radial velocity occurs. The decreasing trend with temporary increase was found for filaments around the critical size and larger, while smaller filaments where less affected by detachment. With detachment the critical filament size increased, as larger filaments were faster in detached conditions. This breaks the trend of attached conditions, where the critical size decreases with increasing density.

中文翻译：

---

分离条件下刮除层长丝的动力学

这里介绍的工作使用 3D 流体模拟在分离的背景轮廓存在的情况下研究细丝的动力学。发现在灯丝的时间尺度上演化中性点对灯丝的动力学没有显着影响。一般来说，已经观察到随着等离子体背景密度的增加，灯丝速度会降低，但分离开始除外，此时径向速度会暂时增加。发现临界尺寸附近和更大的细丝呈暂时增加的下降趋势，而较小的细丝受分离的影响较小。随着分离，临界细丝尺寸增加，因为在分离条件下较大的细丝更快。这打破了附加条件的趋势，其中临界尺寸随着密度的增加而减小。