铸造2025，Vol.74Issue(6)：788-793,6.
铸造模具冷却通道内高速气体射流冲击换热数值模拟与试验验证
Simulation and Experimental Validation of High Velocity Gas Jet Impact Heat Transfer in Casting Die Cooling Channel
何雪莉 1侯柏康 1杨好音 1马小英 2冯树伟 2罗智群 2陈召东 1王俊升 3豆瑞锋1
作者信息
- 1. 北京科技大学能源与环境工程学院,北京 100083
- 2. 中信戴卡股份有限公司,河北秦皇岛 066011
- 3. 北京理工大学前沿交叉研究院,北京 100081
- 折叠
摘要
Abstract
This study adopts computational fluid dynamics method to numerically simulate and experimentally investigate the transient heat transfer process of gas impingement jet in the cooling channel of aluminum alloy wheel hub casting die,and to obtain the rule of change of convective heat transfer coefficient in the cooling channel,and the wall temperature of the cooling channel.Compared with the experimental data,the results show that the mathematical model of the wall temperature prediction accuracy within±5％.It is found that the stationary point position has the highest heat transfer coefficient,while the side position of the cooling channel has a relatively low heat transfer coefficient.The heat transfer coefficient in the cooling channel increases gradually with the increase of gas inflow velocity.This study provides accurate boundary conditions for the simulation model of aluminum alloy wheel casting process.关键词
流体动力学/气体射流冲击/瞬态传热/铸造/数值模拟Key words
fluid dynamics/air jet impact/transient heat transfer/casting/simulation分类
矿业与冶金引用本文复制引用
何雪莉,侯柏康,杨好音,马小英,冯树伟,罗智群,陈召东,王俊升,豆瑞锋..铸造模具冷却通道内高速气体射流冲击换热数值模拟与试验验证[J].铸造,2025,74(6):788-793,6.
