Effect of toroidal mode coupling on explosive dynamics of m/n=3/1 double tearing mode

作     者：Xingqiang LU Ge GAO Zhiwei MA Wei GUO Xin LI 路兴强;高歌;马志为;郭玮;李鑫

作者机构：College of Nuclear Equipment and Nuclear EngineeringYantai UniversityYantai 264005People’s Republic of China Institute for Fusion Theory and SimulationDepartment of PhysicsZhejiang UniversityHangzhou 310027People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2024年第26卷第10期

页      面：8-16页

核心收录：

学科分类：08[工学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National MCF Energy R&D Program of China(Nos.2022YFE03100000 and 2019YFE03030004) National Natural Science Foundation of China(No.11835010) the Natural Science Foundation of Shandong Province(No.ZR2021MA074) the National College Students’Innovation and Entrepreneurship Training Program(No.202211066017) 

主　　题：toroidal mode coupling higher m and n modes explosive growth reconnection rate position change 

摘      要：The CLT code was used to quantitatively study the impact of toroidal mode coupling on the explosive dynamics of the m/n=3/1 double tearing *** focus of this study was on explosive reconnection processes,in which the energy bursts and the main mode no longer dominates when the separation between two rational surfaces is relatively large in the medium *** development of higher m and n modes is facilitated by a relatively large separation between two rational surfaces,a small q_(min)(the minimum value of the safety factor),or low *** relationships between the higher m and n mode development,explosive reconnection rate,and position exchange of 3/1 islands are summarized for the first *** plays a more important role than q_(min)in enhancing the development of higher m and n *** a relatively large separation,the good development of higher m and n modes greatly reduces the reconnection rate and suppresses the development of the main mode,resulting in the main mode not being able to develop sufficiently large to generate the position changes of 3/1 islands.