Analysis of Turbulence Driven Particle Transport in PANTA by Using Multi-Field Singular Value Decomposition
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- KODAHARA Takumi
- College of Industrial Technology, Nihon University
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- SASAKI Makoto
- College of Industrial Technology, Nihon University
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- KAWACHI Yuichi
- National Institute for Fusion Science
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- JAJIMA Yuki
- College of Industrial Technology, Nihon University
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- KOBAYASHI Tatsuya
- National Institute for Fusion Science
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- YAMADA Takuma
- Research Center for Plasma Turbulence, Kyushu University Faculty of Arts and Science, Kyushu University
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- ARAKAWA Hiroyuki
- Department of Health Sciences, Faculty of Medical Sciences, Kyushu University
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- FUJISAWA Akihide
- Research Center for Plasma Turbulence, Kyushu University Research Institute for Applied Mechanics, Kyushu University
Description
<p>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.</p>
Journal
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- Plasma and Fusion Research
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Plasma and Fusion Research 18 (0), 1202036-1202036, 2023-06-05
The Japan Society of Plasma Science and Nuclear Fusion Research
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Keywords
Details 詳細情報について
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- CRID
- 1390014879183710208
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- ISSN
- 18806821
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- KAKEN
- OpenAIRE
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- Abstract License Flag
- Disallowed