论文标题
对非线性双撕裂模式的粘性作用和相邻Harris板中的浆液形成
Viscous effects on nonlinear double tearing mode and plasmoid formation in adjacent Harris sheets
论文作者
论文摘要
在本文中，我们研究了基于Nimrod代码中电阻性MHD模型的一对相邻Harris板中粘度对双撕裂模式演变（DTM）演变的影响。与传统的单harris板中的撕裂模式相似，在pr = 1处同时生成正常和怪物等离子体时观察到过渡。在DTM的PR <1状态下，正常的浆液（小浆液）与怪物浆体一起产生，而在单个催泪模式（STM）中，却无法观察到这种产生的情况。当PR高于临界值时，怪物浆体的产生会停止。相应地，在PR <1的制度中，沿多型方向的四极流量对流，但在PR> 1方向上，该流量对流受到抑制。
In this paper, we study the effects of viscosity on the evolution of double tearing mode (DTM) in a pair of adjacent Harris sheets based on the resistive MHD model in the NIMROD code. Similar to the tearing mode in the conventional single Harris sheet, a transition is observed in the generation of both normal and monster plasmoids at Pr = 1. In the Pr < 1 regime of DTM, normal plasmoids (small plasmoids) are generated along with monster plasmoid, whereas in the single tearing mode (STM) cases such a generation is not observed. When Pr is above the critical value, the generation of monster plasmoid is halted. Correspondingly, in the Pr < 1 regime, a quadrupolar flow advects along poloidal direction, but in Pr > 1 regime this flow advection is inhibited.
