プラズモイド放出を用いた動的ダイバータのMHDシミュレーション

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2011/11/01

タイトル(英語): MHD Simulation of Dynamic Divertor by Plasmoid Ejection

著者名: 井上　静雄（東京大学大学院工学系研究科），小野　靖（東京大学大学院工学系研究科），伊藤　慎悟（東京大学大学院工学系研究科）

著者名(英語): Shizuo Inoue (Graduate School of Engineering, The University of Tokyo), Yasushi Ono (Graduate School of Engineering, The University of Tokyo), Shingo Ito (Graduate School of Engineering, The University of Tokyo)

キーワード: プラズモイド，ダイバータ，電磁流体シミュレーション，Lax-Wendroff法　　plasmoid，divertor，MHD simulation，Lax-Wendroff method

要約(英語): We proposed a new type of dynamic divertor by use of plasmoid ejection from the main plasma. Our 2-D MHD simulation demonstrated for the first time how the plasmas and coil conditions can control plasmoid dynamics for divertor action. This dynamic divertor has four essential steps. First, current drive and heating causes the main detached plasma to expand around the divertor region, causing a plasmoid formation. Second, the expanding core plasma finally pinches off the plasmoid. Next, the plasmoid isolated from the main plasma is cooled down by Argon gas puff and finally is connected with the divertor plate. The series of divertor actions are expected to reduce the heat road to divertor plate significantly, suggesting a new type divertor useful for heavy heat load from type I Edge-Localized Mode (ELM).

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.131 No.11 （2011）

本誌掲載ページ: 963-964 p

原稿種別: 研究開発レター／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/131/11/131_11_963/_article/-char/ja/