2010 Fiscal Year Final Research Report
Theoretical study of transport process in fusion ignition plasmas
| Project/Area Number |
19360418
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
ITOH Kimitaka National Institute for Fusion Science, ヘリカル研究部, 教授 (50176327)
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| Co-Investigator(Kenkyū-buntansha) |
TODA Shinichiro 核融合科学研究所, ヘリカル研究部, 准教授 (60332186)
MURAKAMI Sadayoshi 京都大学, 大学院・工学研究科原子核工学専攻, 准教授 (40249967)
SANUKI Heiji 元核融合科学研究所, 教授 (80109355)
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| Project Period (FY) |
2007 – 2010
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| Keywords | プラズマ乱流 / 輸送現象 / 帯状流 / 長距離相関 / 過渡応答 / 核融合燃焼 |
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| Research Abstract |
In burning plasmas in magnetic confinement fusion device, the pressure-gradient-driven turbulence is affected by the ignition, so that long wavelength fluctuations are established. In this research project, a theoretical basis for turbulent transport was established, in which nonlinear interactions between microscopic and mesoscopic/macroscopic fluctuations are correctly introduced. For instance, turbulent viscosity was formulated, by renormalizing higher order nonlinear effects of zonal flows. In addition, the seesaw mechanism of turbulent transport was proposed. Theoretical results form the basis for understanding and controlling fusion burning plasmas.
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