Development of a first-principal simulation code of L-H transition
| Project/Area Number |
26889068
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
SETO HARUKI 国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 博士研究員 (90733692)
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| Project Period (FY) |
2014-08-29 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | L-H遷移 / 簡約化MHDモデル / シミュレーション / プラズマ・核融合 / 周辺プラズマ / プラズマ乱流 |
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| Outline of Final Research Achievements |
Development of a first-principal simulation code of L-H transition was carried out based on a three-dimensional MHD/turbulent simulation framework BOUT++ for the quantitative prediction of L-H transition through the improvement of turbulent transport model in L-H transition and H-mode discharge. Although L-H transition itself was not reproduce due to a numerical instability expected to arise from an inconsistent treatment of n=0 mode, a set of key mechanisms required for L-H transition, (1) the generation of the edge radial electric field shear, (2) the reduction of the edge turbulence level, (3) the enhancement of the energy deposition at the edge region, was observed.
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Report
(3 results)
Research Products
(7 results)
