摘要
基于涡轮增压器水冷轴承体冷却机理,采用CFD软件和FEA软件建立了正常工况下轴承体的流固耦合模型,并对两种不同冷却方式下的轴承体冷却性能进行了数值仿真和试验对比。结果表明采用一边进另一边出的冷却方式其温度分布均匀且低温区域分布较广,冷却性能较优。该涡轮增压器水冷轴承体流固耦合模型具较高的精度,为轴承体冷却性能的进一步研究提供依据。
Based on the cooling mechanism of water-cooled bearing in turbocharger,a liquid-solid coupling model for the bearing under normal working conditions is built with CFD and FEA software,and a numerical simulation on the cooling performance of bearing with two different ways of cooling is carried out,which is then compared with tests.The results show that with the way of cooling of one side in and other side out,the temperature distribution is more uniform and the low-temperature region is more widely spread,leading to a better cooling performance.The liquid-solid coupling model for the water-cooled bearing in turbocharger has a high accuracy,providing a basis for the further research of the cooling performance of bearing.
出处
《汽车工程》
EI
CSCD
北大核心
2014年第3期383-388,共6页
Automotive Engineering
基金
湖南省自然科学基金(10JJ6080)
汽车车身先进设计制造国家重点实验室自主课题(61075002)
国家重点院校基础研究基金(531107040300)资助
关键词
涡轮增压器
轴承
冷却
流固耦合
数值模拟
turbocharger
bearing
cooling
fluid-solid coupling
numerical simulation
