Prediction Method of Surface Heat Transfer Coeff icients of Secondary Cool ing Area for Continuous Casting Slab

doi:10.7652/xjtuxb200601007

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Prediction Method of Surface Heat Transfer Coeff icients of Secondary Cool ing Area for Continuous Casting Slab

更新时间：2025-07-09

- Prediction Method of Surface Heat Transfer Coeff icients of Secondary Cool ing Area for Continuous Casting Slab
- Vol. 40, Issue 1, Pages: 26-0029(2006)
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb200601007
  CLC： TK124
- Online First：10 January 2006，
  
  Published：2006
- 稿件说明：
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Prediction Method of Surface Heat Transfer Coeff icients of Secondary Cool ing Area for Continuous Casting Slab[J]. 2006, 40(1): 26-0029.
DOI：

Prediction Method of Surface Heat Transfer Coeff icients of Secondary Cool ing Area for Continuous Casting Slab[J]. 2006, 40(1): 26-0029. DOI： 10.7652/xjtuxb200601007.

摘要

采用求解导热反问题的方法

构造了求解铸坯表面传热系数的导热反问题数学模型

采用修 正的直接法对导热微分方程进行差分

建立了各时间节点与空间节点之间的关系式

实现了不同喷 水条件下的表面传热系数O表面温度对应关系的求解

并用实测数据对表面传热系数进行了预测. 结果表明

修正后的直接法避免了计算结果的大幅振荡

使解的精度及鲁棒性能得到大大改善. 研 究结果为板坯连铸机二冷区喷水制度的正确制订奠定了坚实的理论基础.

Abstract

modified direct numerical met hod for solving t he inver se heat conduction problem for slab continuous casting is proposed. By discreti-ing t he differential equations and setting up t he relationship between time nodes and space nodes

t he corresponding heat t ransfer coefficient s of different surface temperature were obtained under different water spraying conditions

f urt her2 more

t he heat t ransfer coefficient s were predicted based on t he experimental data. Compared wit h t he competing methods

the modified direct numerical met hod enables to avoid t he unstable result s during t he initial period

and improves the solution accuracy and robust ness significantly. The met hod can be used to correctly water spraying system for t he secondary cooling region of slab continuous casting.

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references

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