Modeling of particle fueling process by hydrogen pellet injection and its experimental validation

氢颗粒喷射颗粒燃料过程建模及其实验验证

• 批准号: 22860075
• 负责人: MATSUYAMA Akinobu
• 金额: $ 1.38万
• 依托单位: National Institute for Fusion Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22860075/
• 关键词: プラズマ・核融合; プラズマ理論; ペレット入射; プラズマ加熱; MHD; 核融合プラズマ; 磁場閉じ込め; ペレット溶発; 高速イオン; E×Bドリフト; 固体水素

Pellet injection is the most promising technique for fueling magnetic fusion reactors. In this study, the pellet ablation and density homogenization processes have been investigated and modeled for evaluating mass deposition profiles of hydrogen pellets injected into the Large Helical Device(LHD). A simulation code that takes into account ablation of solid hydrogen, formation of dense plasma cloud, and drift motion of a deposited cloud was developed. A progress has been made in validating the developed model against the experimental results. It was shown that simulation results well reproduce main characteristics of the measured ablation and deposition profiles in the LHD.

沉淀注射是加油磁融合反应器的最有希望的技术。在这项研究中，已经研究并建立了用于评估注射到大型螺旋装置（LHD）的氢颗粒的质量沉积谱的研究和建模的。考虑了固体氢的消融，密集的等离子体云的形成以及沉积云的漂移运动的模拟代码。在验证开发模型的实验结果方面取得了进展。结果表明，模拟结果很好地重现了LHD中测得的消融和沉积谱的主要特征。

项目成果

Plasma shielding model for the ablation of hydrogen pellets with fast ions in Large Helical Device

大型螺旋装置中快离子烧蚀氢丸的等离子体屏蔽模型

• 发表时间: 2010
• 作者: A. Matsuyama;R. Sakamoto;B. Pegourie;G. Motojima;J. S. Mishra;and H. Yamada
• 通讯作者: and H. Yamada

LHD実験における水素ペレットの侵入長に対する高速イオンの影響

LHD 实验中快离子对氢弹穿透长度的影响

• 发表时间: 2011
• 作者: 池田弘二;松本謙一郎;駒野谷将;小林広和;福岡淳;大井俊彦;田口精一;伊藤重剛;松山顕之
• 通讯作者: 松山顕之

Observation of three-dimensional motion of the pellet ablatant in the Large Helical Device

• DOI: 10.1088/0029-5515/51/8/083039
• 发表时间: 2011-08-01
• 期刊: NUCLEAR FUSION
• 影响因子: 3.3
• 作者: Mishra, J. S.;Sakamoto, R.;Yamada, H.
• 通讯作者: Yamada, H.

Design and performance of a punch mechanism based pellet injector for alternative injection in the large helical device

基于冲头机构的大型螺旋装置中交替注射颗粒注射器的设计与性能

• DOI: 10.1063/1.3541807
• 发表时间: 2011
• 期刊: REVIEW OF SCIENTIFIC INSTRUMENTS
• 影响因子: 1.6
• 作者: J.S.Mishra;R.Sakamoto;G.Motojima;A.Matsuyama;H.Yamada
• 通讯作者: H.Yamada

Modelling of pellet ablation and homogenization for outboard side injection in the Large Helical Device

大型螺旋装置外侧注射的颗粒烧蚀和均质化建模

• 期刊: Proceedings of 38th European Physical Society Conference on Plasma Physics ISBN 2-914771-68-1
• 作者: A. Matsuyama;F. Kochl;B. Pegourie;R. Sakamoto;G. Motojima;and H. Yamada
• 通讯作者: and H. Yamada