著者

Takumi KODAHARA Makoto SASAKI Yuichi KAWACHI Yuki JAJIMA Tatsuya KOBAYASHI Takuma YAMADA Hiroyuki ARAKAWA Akihide FUJISAWA

出版者

The Japan Society of Plasma Science and Nuclear Fusion Research

雑誌

Plasma and Fusion Research (ISSN:18806821)

巻号頁・発行日

vol.18, pp.1202036, 2023-06-05 (Released:2023-06-07)

参考文献数

9

被引用文献数

1

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Multi-field singular value decompositions (SVDs) is applied to turbulence obtained in a cylindrical magnetized plasma, PANTA. This method enables us to obtain the spatial mode structures with common temporal evolution of different physical quantities, such as the fluctuations of density and flows. Turbulence driven particle transport is evaluated by the method. It is shown that only the coupling of the same mode drives the transport, which stems from the orthogonality of the SVD. Thanks to this characteristics, the number of degrees of freedom which plays roles for the transport dynamics could be significantly reduced.