Study of mitigation of edge profile collapse consistent with fueling and impurity exhaust in tokamak reactor

2017 Fiscal Year Final Research Report

• Project/Area Number: 26420862
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: National Institutes for Quantum and Radiological Science and Technology (2016-2017); Japan Atomic Energy Agency (2014-2015)
• Principal Investigator: Hayashi Nobuhiko 国立研究開発法人量子科学技術研究開発機構, 那珂核融合研究所 先進プラズマ研究部, グループリーダー(定常) (10354573)
• Co-Investigator(Renkei-kenkyūsha): HOSHINO KAZUO 量子科学技術研究開発機構, 先進プラズマ研究部, 主幹研究員 (50513222) ; AIBA NOBUYUKI 量子科学技術研究開発機構, 核融合炉システム研究開発部, 上席研究員 (20414584) ; HONDA MITSURU 量子科学技術研究開発機構, 先進プラズマ研究部, 主幹研究員 (90455296)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 統合モデリング / 崩壊現象 / 制御 / 不純物 / 燃料 / シミュレーション

Outline of Final Research Achievements

An integrated code for core and peripheral plasmas has been developed so that the code enables the study of fueling, impurity exhaust and mitigation of edge profile collapse. In the study, an interface model to couple fluid code with Monte-Calro particle code has been also developed. Simulations with the developed code clarified that optimum conditions for pellet injection to mitigate the edge profile collapse, the compatibility between the mitigation control and fueling, and the realization of high-pressure steady-state operation scenario by the evaluation of impurity accumulation and its effect on core plasma performance.

Free Research Field

核融合プラズマモデリング・シミュレーション