ウエダ　ヨシオ   Ueda Yoshio   上田　良夫    所属   追手門学院大学  理工学部 電気電子工学科    職種   教授
言語種別	英語
発行・発表の年月	2019/03
形態種別	論文
査読	査読あり
標題	Evaluation of Marangoni convection and free surface velocity of molten tungsten for tungsten divertor
執筆形態	共著・編著（代表編著を除く）
掲載誌名	Fusion Engineering and Design
掲載区分	国外
巻・号・頁	140,pp.117-122
著者・共著者	Kohei Hamaguchi,Eiji Hoashi,Takafumi Okita,Kenzo Ibano,Yoshio Ueda
概要	To evaluate the profile-modification mechanism, we simulated the melting and solidification process of tungsten, by using a constrained interpolation profile and combined unified procedure. We simulated molten tungsten as having a free surface driven by the Marangoni effect and assuming a given temperature gradient or heat flux as the local heating. We evaluated the relationships among the free surface behavior, the molten tungsten convection, and the molten-layer aspect ratio. The surface fluctuation occurred owing to the vortex generated by the molten-layer convection, and the influence of the aspect ratio was different for the two models.
DOI	10.1016/j.fusengdes.2019.01.143
ISSN	0920-3796