关于玻璃熔体自然对流三维数值方法的验证  

Validity of Three-Dimensional Numerical Method of Natural Convection in Glass Melts

作　　者：祁建伟[1] 胡桅林[1] 过增元[1] 

机构地区：[1]清华大学工程力学系

出　　处：《玻璃与搪瓷》1996年第4期30-36,共7页Glass & Enamel

基　　金：国家自然基金;4400厂对本研究工作的资助

摘　　要：关于玻璃熔体自然对流三维数值方法的验证祁建伟，胡桅林，过增元（清华大学工程力学系，１０００８４）ＶａｌｉｄｉｔｙｏｆＴｈｒｅｅ－ＤｉｍｅｎｓｉｏｎａｌＮｕｍｅｒｉｃａｌＭｅｔｈｏｄｏｆＮａｔｕｒａｌＣｏｎｖｅｃｔｉｏｎｉｎＧｌａｓｓＭｅｌｔｓ￥ＱｉＪ...Three-dimensional mathematical model of natural convection in a 1:20 scale glycerine laboratory model of an industrial glass melting furnace has been established.The condition simulated is the case of side wall heat losses accounting for 15% of the total energy input to determine three dimensional motion.The validity of computational method is tested by comparison with measurements of the temperatures and velocities.Good agreement is obtained between measurements and computations.The computed results in this study conform the dominanat two-dimensional motion in longitudinal direction previously reported by two-dimensional numerical simulation[1]and show that the side wall heat losses will cause the transverse flow to affect the energy transfer from the convective motion in longitudinal plan.The main effects of the side-wall heat losses are to generate a boundary layer flow down the wall and reduce the temperature in the core.

关 键 词：玻璃 熔体流动 三维数值方法 验证 

分 类 号：TQ171.621[化学工程—玻璃工业]