HL-2A托卡马克电子回旋共振加热调制对边缘输运的影响  

Effects of Electron Cyclotron Resonance Heating Modulation on Edge Transport in the HL-2A Tokamak

作　　者：胡莹欣 赵开君 严龙文[2] 黄治辉 谢耀禹 温思宇 丁肖冠 HU Yingxin;ZHAO Kaijun;YAN Longwen;HUANG Zhihui;XIE Yaoyu;WEN Siyu;DING Xiaoguan(School of Nuclear Science and Engineer,East China University of Technology,Nanchang 330013,China;Southwestern Institute of Physics,Chengdu 610041,China)

机构地区：[1]东华理工大学核科学与工程学院,南昌330013 [2]核工业西南物理研究院,成都610041

出　　处：《能源研究与管理》2025年第1期165-172,共8页Energy Research and Management

基　　金：国家自然科学基金项目(12075057);江西省自然科学基金项目(20202ACBL201002)。

摘　　要：为研究托卡马克装置等离子体中微观湍流对边缘粒子和能量输运的影响,采用快速往复朗缪尔探针阵列在HL-2A装置上测量了电子回旋共振加热(ECRH)调制期间等离子体基本参数,并用谱分析方法分析了粒子输运期间时域和频域的变化。结果表明:ECRH开启时,径向电场、环向旋转以及湍流都显著增强;由湍流引起的径向向外的粒子和能量通量均增加,涨落强度的增加和相位差的减小及相关系数的增强是ECRH期间粒子通量显著增加的重要原因;ECRH调制期间湍流引起的能量通量的增加来自于对流项和传导项两者的贡献,且传导项的贡献略大,约占总能量通量的60%。这些结果表明ECRH可以调制边缘流和湍流,并对边缘粒子和能量输运产生重要影响。To study the impact of micro-turbulence on edge particle and energy transport in the plasma of a Tokamak device.Basic plasma parameters during electron cyclotron resonance heating(ECRH)modulation were measured on the HL-2A device using a fast reciprocating Langmuir probe array.The particle transport was examined using spectral analysis methods to study the changes in both the time domain and frequency domain.The results show that the radial electric field,toroidal rotation,and turbulence are significantly enhanced when ECRH is turned on,and the radial outward particles and energy fluxes caused by turbulence also increase.The increase in fluctuation intensity,the decrease in phase shift and the enhance-ment of correlation lead to a significant increase in particle flux during ECRH.The increase in energy flux caused by turbulence during ECRH modulation comes from heat convective and conduction,with the conduction term contributing slightly more,approximately 60%.These results indicate that ECRH can modulate edge flow and turbulence and have a significant impact on edge particle and energy transports.

关 键 词：托卡马克 ECRH调制 湍流输运 朗缪尔探针 

分 类 号：TM615[电气工程—电力系统及自动化]