2219 ジュール加熱式ガラス溶融炉の数値解析 : 第一報 電場・伝熱・流体の連成解析(G05-3 解析モデルと解析手法,G05 流体工学)  [in Japanese] 2219 Numerical Simulation of Joule-Heated Glass Melters : Coupled Simulation of Electric Field, Heat Transfer and Fluid Dynamics  [in Japanese]

A numerical model of Joule-heated glass melters for high-level waste vitrification has been developed to assist its operations. Electric Field, heat transfer and fluid dynamics are coupled in the simulation because they strongly affect each other. The results indicate that electric field at the bottom is formed asymmetrically during heating phase because of the arrangement of the electrodes. Temperature distribution at the bottom, however, is kept almost symmetrically due to mixing effect by natural convection of the glass.