基于CFD的真空阀流固耦合及热应力分析
彭川桃1,罗阳*,1,周博1,黄斐月1,宋敏2
(1.四川大学 机械工程学院,四川 成都 610041;2.九川真空科技(成都)有限公司,四川 成都 610213)
摘要:以大型高温真空阀门的主动冷却为研究对象,建立了阀体和流体的三维耦合分析模型。首先考虑阀体内冷却通道受稳定水流及均匀热流载荷的共同作用,分析了该共轭传热问题的控制方程。然后利用CFD的方法计算得到了在不同进水流速下流体的流场和阀体冷却效果。最后选择最优流速下的稳态温度场作为热载荷对阀体结构进行热应力分析,得到了阀体结构的应力云图与位移云图。通过对云图的分析证明了方案设计的合理性,并为今后的改进提供理论依据。
关键词:流固耦合;控制方程;CFD;热应力
中图分类号:TB756 文献标志码:A doi:10.3969/j.issn.1006-0316.2021.03.003
文章编号:1006-0316 (2021) 03-0017-06
Fluid-Solid Coupling and Thermal Stress Analysis of Vacuum Valve Based on CFD
PENG Chuantao 1,LUO Yang 1,ZHOU Bo1,HUANG Feiyue1,SONG Min2 
( 1.School of Mechanical Engineering, Sichuan University, Chengdu 610041, China;2.JiuChuan Vacuum Technology (Chengdu) Co., Ltd., Chengdu 610213, China )
Abstract:Taking the active cooling of large high temperature vacuum valve as the research object, the three-dimensional coupling analysis model of valve body and fluid is established. Firstly, the governing equation of the conjugate heat transfer problem is analyzed on the basis of the fact that the cooling channel in the valve body is affected by the steady flow and uniform heat flow loads. Then the flow field and cooling effect of the valve body at different inlet velocities are calculated through CFD method. Finally, the static temperature field at the optimal flow rate is selected as the thermal load to analyze the thermal stress of the valve body structure, and the stress and displacement cloud diagrams of the valve body structure are obtained. Through the analysis of the cloud image, the rationality of the scheme design is proved, and the theoretical basis is provided for the improvement in the future.
Key words:fluid-solid coupling;governing equation;CFD;thermal stress
———————————————
收稿日期:2020-09-07
基金项目:工信部智能制造综合标准化与新模式应用项目:高真空分子泵智能制造车间(2016062);四川省科技厅项目:大型智能环境模拟设备制造技术及应用(2016GZ0159)
作者简介:彭川桃(1996-),男,重庆人,硕士,主要研究方向为CAE仿真。*通讯作者:罗阳(1969-),男,四川成都人,博士,教授,主要研究方向为CAE仿真,E-mail:drluoyang@scu.edu.cn。
 

 

设为首页  |  加入收藏    |   免责条款
《机械》杂志版权所有     Copyright©2008-2012 Jixiezazhi.com All Rights Reserved 

  电话:028-85925070    传真:028-85925073    E-mail:jixie@vip.163.com

地址:四川省成都锦江工业开发区墨香路48号   邮编:610063

蜀ICP备08103512号

Powered by PageAdmin CMS