“高端外国专家引进计划”系列报告——Katsumi Ida

==== Academic Seminars No.130 ====

时  间：2022年10月27日（周四）09:00

报告形式：Zoom线上报告

Zoom会议：912 454 0180（密码：JTEXT）

报告地点：326会议室

邀 请 人：王能超 （副研究员）

报 告 人：Katsumi Ida (日本国家聚变科学研究所)

报告题目：Impact of turbulence spreading on structure formation in toroidal plasma

摘  要：Nonlinear coupling between micro-turbulence and meso-(or macro) turbulence causes turbulence spreading. The structure formation (density, temperature profiles) is strongly influenced by the turbulence spreading. The turbulence spreading from the region outside ITB to the area inside ITB determines the sharpness of the ITB foot. The corrugation (so-called staircase) is a unique and interesting structure formation in toroidal plasmas. The turbulence spreading would be an important mechanism to determine the radial structure. The turbulence spreading would also be essential inside the magnetic island because no turbulence is excited inside the magnetic island due to the flattening of temperature and density. The scrape-off layer (SOL) is also the region where no turbulence is excited, and spreading turbulence is dominant similar to the magnetic island.

个人简介：Katsumi Ida，日本国家聚变科学研究所 (NIFS) 教授，螺旋等离子体研究部大型螺旋装置项目执行主任, 高温等离子体物理研究室主任。是国际知名的等离子体理论与实验物理学家，特别是在湍流与输运方面取得了多项开创性的成果，曾荣获日本文部省颁发的日本最高科学奖。在国际顶尖期刊Nature Communications，Phys. Rev. Lett.上以第一作者发表文章17篇。发表文章SCI收录490篇，总引用达9094次，H-因子高达47。