摘要
采用CFD方法,建立了由阀体和阀体内的流体组成的负压式EGR阀的流固耦合传热仿真模型,进行了流体与固体之间的共轭传热仿真。仿真及试验结果表明,在上阀体设计冷却水道,有助于改善阀体的换热状况,能很好地满足安装在上阀体的密封环以及其他附件工作温度要求。
The fluid-solid coupled heat transfer model for the negative pressure EGR valve consisting of valve body and its fluid inside was established with CFD method and the conjugate heat transfer simulation between fluid and solid structure was conducted.The results of simulation and experiment show that the designed cooling passage in upper valve is beneficial to improve the heat exchange of valve body and can meet well the working temperature requirements of sealing ring and other accessories in upper valve.
出处
《车用发动机》
北大核心
2015年第6期73-78,共6页
Vehicle Engine
基金
过程装备与控制工程四川省高校重点实验室基金资助项目(GKYJ201101
GK200907
GK201205
GK201403)
材料腐蚀与防腐四川省重点实验室基金资助项目(2012CL10)
四川省教育厅项目(13ZA0129)
关键词
负压式EGR阀
计算流体动力学
流固耦合
传热
温度场
negative pressure EGR valve
CFD
fluid-solid coupling
heat transfer
temperature field
