摘要
对某款正在开发的汽车排气系统进行热性能评估,应用CFD和FEA方法完成两种设计方案的传热与热负荷研究。借助CFD软件计算获得的流体热边界条件,采用FEA方法获得了排气系统壳体表面的温度分布和热应力分布,试验测试结果表明了该研究方法的有效性,为最终设计方案的确定提供了依据,并为排气系统设计提供了新的思路。
Thermal performance of a developing exhaust system was evaluated.The CFD and FEA methods were used to complete two design schemes of heat transfer and thermal load.The fluid thermal boundary conditions calculated by CFD software was combined with FEA method to obtain the surface temperature and thermal stress distribution of exhaust system′s shell.The shell research results were verified by testing;it provides theoretical basis and new ideas for the exhaust system design.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2011年第3期407-410,459,共5页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
国家863基金资助项目(2009AA064804)
关键词
排气系统
有限元模型
温度场
热应力
exhaust system
finite element model
temperature field
thermal stress
