著者

高口 祥平 高橋 秀治 木倉 宏成

出版者

一般社団法人 日本機械学会

雑誌

熱工学コンファレンス講演論文集 2020 (ISSN:2424290X)

巻号頁・発行日

pp.0180, 2020-10-09 (Released:2021-03-17)

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In Japan, high-level radioactive liquid waste is vitrified in Joule-heated glass melter. Natural convection in glass melter is predicted by numerical calculations for stable operation. Since molten glass is a highly viscous fluid, implicit methods are used in numerical calculations. However, cold cap above the molten glass shows a large spatial variation in viscosity. Therefore, using the implicit method to compute the cold cap takes a long time. In this study, we focus on Variable Inertia Method that can compute natural convection of highly viscous fluids in the explicit method and verify its applicability to glass melter.