Study of isotope effects on anomalous transport based on peta-scale turbulence simulations
| Project/Area Number |
26420861
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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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 |
Idomura Yasuhiro 国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 研究主幹 (00354580)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
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| Keywords | ジャイロ運動論 / トカマク / ITER / プラズマ乱流 / 同位体効果 / 異常輸送 / 核融合 / 数値実験 / イオン温度勾配駆動乱流 / 補足電子モード乱流 / 捕捉電子モード乱流 / 核燃焼プラズマ |
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| Outline of Final Research Achievements |
A new kinetic electron model is developed for full-f gyrokinetic simulations. Isotope effects on plasma confinement are analyzed by conducting numerical experiments of ion temperature gradient driven (ITG) turbulence and ion temperature gradient driven trapped electron mode (ITG-TEM) turbulence in hydrogen and deuterium plasmas. It is found that in ITG turbulence with adiabatic electrons, isotope mass dependency is not reproduced, while an indirect plasma size effect is confirmed through plasma size dependency. In ITG-TEM turbulence with kinetic electrons, isotope mass dependency appears as a collisional stabilization effect on trapped electron modes. However, its impact on numerical experiments is not large enough to explain experimental isotope mass dependency.
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Report
(4 results)
Research Products
(26 results)
