工程科学学报2016，Vol.38Issue(4)：494-500,7.DOI:10.13374/j.issn2095-9389.2016.04.007
基于反算热流的结晶器内流动--传热--凝固耦合模拟
Simulation of coupled fluid flow, heat transfer and solidification in slab continuous casting molds based on heat flux from an inverse model
摘要
Abstract
A three-dimensional mathematical model is developed based on the Navier- Stokes momentum equation and the low Reynolds number turbulence k-εequation. This model comprehensively considers energy conservation, molten steel solidification and the influence of the mushy zone on the flow process. Нeat flux obtained through an inverse heat transfer model combined with measured temperature is set as the boundary condition to the coupling model, to investigate fluid flow, heat transfer and solidification in the con-tinuous casting mold. It is found that liquid steel flow has important influence on the distributions of temperature and heat flux, and the solidification process is governed by a synthetic action of fluid flow and heat flux. The proposed model and the non-uniform characteris-tic of solidification can provide reference for further investigation on longitudinal cracks and other surface defects during continuous casting.关键词
连涛/结晶器/流动/传热/凝固/反问题Key words
continuous casting/molds/fluid flow/heat transfer/solidification/inverse problems分类
矿业与冶金引用本文复制引用
李天衣,王旭东,孔令伟,姚曼,田勇,魏祖康,冯巍,冯国辉,钱志友..基于反算热流的结晶器内流动--传热--凝固耦合模拟[J].工程科学学报,2016,38(4):494-500,7.基金项目
国家自然科学基金资助项目(51474047) （51474047）
中国博士后科学基金资助项目(2012M520621/2013T60511) （2012M520621/2013T60511）
