山东建筑大学学报2025，Vol.40Issue(5)：99-106,8.DOI:10.12077/sdjz.2025.05.014
连铸结晶器内瞬态流动及传热的大涡模拟研究
Large eddy simulation of transient flow and heat transfer in a continuous casting mold
摘要
Abstract
Optimizing the flow field within a continuous casting mold is essential for improving the quality of steel products.In this study,the flow field inside the mold was numerically simulated using a Large Eddy Simulation(LES)model,and a water model was employed to observe the jet phenomenon for validating the LES results.The Ω-criterion was introduced to identify vortex structures,enabling the simulation of vortices in the vertical section of the mold.The study analyzes transient flow dynamics,vortex evolution,and heat transfer processes,and reveals the formation and transformation of strong and weak coherent vortices within the mold.The results show that both heat transfer and flow within the mold exhibit asymmetric distributions.Along the wide face of the mold,as the molten steel flows downward,its temperature and velocity gradually decrease,and flow non-uniformity diminishes.At a casting speed of 1.3 m/min,when the jet from the submerged entry nozzle impacts the narrow face,it facilitates the formation of a solidified shell along the narrow face,while also maintaining reasonable surface flow in the mold.The LES model provides a robust approach for simulating transient flow and heat transfer in the continuous casting process,demonstrating higher predictive accuracy compared to traditional Reynolds-Averaged Navier-Stokes(RANS)models.关键词
连铸结晶器/涡构结构/非对称流动/传热/大涡模拟Key words
continuous casting crystallizer/vortex structure/asymmetric flow/conduct heat/large eddy simulation分类
矿业与冶金引用本文复制引用
尤昊龙,赵鹏,王晓林,赵树民,王俊海..连铸结晶器内瞬态流动及传热的大涡模拟研究[J].山东建筑大学学报,2025,40(5):99-106,8.基金项目
国家自然科学基金项目(U1960101) （U1960101）
