Published June 2023
| Version v1
Journal article
Analysis of turbulence driven particle transport in PANTA by using multi-field singular value decomposition
Creators
- 1. Nihon University, College of Industrial Technology, Narashino, Chiba (Japan)
- 2. National Institute for Fusion Science, Toki, Gifu (Japan)
- 3. Kyushu University, Research Center for Plasma Turbulence, Kasuga, Fukuoka (Japan)
- 4. Kyushu University, Faculty of Medical Sciences, Department of Health Sciences, Fukuoka (Japan)
Description
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. (author)
Additional details
Identifiers
Publishing Information
- Journal Title
- Plasma and Fusion Research
- Journal Volume
- 18
- Journal Page Range
- p. 1202036.1-1202036.3
- ISSN
- 1880-6821
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 55089871
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- CLOSED PLASMA DEVICES; CORRELATIONS; DEGREES OF FREEDOM; LANDAU FLUCTUATIONS; MAGNETIZATION; ORTHOGONAL TRANSFORMATIONS; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA POTENTIAL; PLASMA WAVES; REYNOLDS NUMBER; SPACE DEPENDENCE
- Descriptors DEC
- DIMENSIONLESS NUMBERS; ELECTRIC POTENTIAL; FLUCTUATIONS; THERMONUCLEAR DEVICES; TRANSFORMATIONS; VARIATIONS
Optional Information
- Notes
- 9 refs., 2 figs.