六角形玻璃电熔窑内部流动与传热特性数值模拟

Numerical simulation of internal flow and heat transfer in hexagonal electric melting glass furnace

采用内热源结合固定电极壁温的方法替代实际电熔窑交变电场焦耳热的产生,通过数值求解基于雷诺时均的三维定常黏性N-S方程及能量方程,对某实际运行的六角形玻璃电熔窑内部的流场、温度场进行了数值模拟研究。通过与物理模拟试验结果相比对,验证了提出的内热源结合固定电极壁温方法的正确性,运用该方法对玻璃电熔窑内温度场及流场开展模拟研究,获得了其内部温度分布特点、涡系结构及流场细节,为玻璃电熔窑的设计及优化提供了一定参考。

The internal fluid flow and heat transfer characteristics of a hexagonal electric melting glass furnace was numerically investigated,using the method that the generation of the j oule heat caused by the alternating electric field in the actual melting furnace is replaced by the internal heat source combined with the constant electrode temperature.Firstly,by comparing the simulations with the experimental measurements obtained from PIV system,a good consistency was found,and the validity of the equivalent method proposed was verified.Secondly,the steady flow and temperature field in the glass furnace were obtained by solving Re averaged N-S equations （RANS）, and the internal temperature distribution characteristics,vortex system as well as flow field details were analyzed.