连铸板坯三维瞬态温度场的软件模拟实现

Software simulation of 3D transient temperature filed in continuous casting slab

连铸过程实际是一个凝固传热过程。连铸过程中的铸坯温度分布及其变化对于产品质量是非常重要的,人们不断地研究和调整连铸工艺参数,目的就是为了获得理想的温度分布。近年来广大研究者对铸坯凝固的温度场进行了大量深入细致的研究,并开发出了很多温度场模拟的模型和软件。但大都是二维的,只能用于离线工况的静态模拟,不能有效模拟连铸过程中经常存在的非稳态情况。本文建立了板坯连铸传热过程的三维非稳态数学模型,可以实时的反映不同连铸工艺参数对铸坯温度场的瞬态影响,并将计算结果与实测结果进行了比较来说明模型的准确性。为制定合理的二冷制度,和确定动态轻压下的压下位置提供可靠的依据。

In recent years,many mathematicl heat transfer models for continuous casting have been developed. Most of the models presented in the literature can only be used for simulation of steady state casting operations in off-line mode. These models are increasingly being Used for controlling the process, improving the existing cooling systems and the casting practices,For better control over the whole continuous casting cycle, more attention has recently been paid to developing real-time heat transfer models which are valid under transient casting conditions.We build a 3D heat transfer models for continuous casting and improve effective specific special water flowrate of secondary cooling mathematical model