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- Yoon, Eisung
- Fusion and Plasma Application Research Lab.
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Turbulence spreading induced E×B vortex flow generation in a magnetic island
- Author(s)
- Yoon, Eisung, Hahm, Taik-Soo, Choi, Gyoungjin, Youngwoo Cho, Ishizawa, Akihiro, Choi, Minjun, Kwon, Jae-Min
- Issued Date
- 2024-10
- Citation
- NUCLEAR FUSION, v.64, no.12, pp.126050
- Abstract
- Wederive a self-consistent relation between turbulence spreading flux and vortex flow acceleration for time-stationary turbulence inside a magnetic island (MI) by extending the Charney-Drazin momentum theorem. The result, which consists of flux-surface-averaged expressions with geometrical weight, indicates a dominant balance between the turbulence spreading flux through regions around X-points and the vortex flow away from the X-points on the same flux surface. This is in qualitative agreement with experimental observations from DIII-D, KSTAR and HL-2A.
- Publisher
- Institute of Physics Publishing
- ISSN
- 0029-5515
- Keyword (Author)
- magnetic island, momentum theorem, turbulence spreading, exb vortex flow, flow generation
- Keyword
- ZONAL FLOWS, TRANSPORT, MICROTURBULENCE, INSTABILITIES, PROPAGATION, PLASMA
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