基于公交车发动机舱的热管理系统CFD分析  

CFD Analysis on the Underhood Heat Management of a Bus

作　　者：李世伟[1] 吴国荣 田杰安[1] 闫伟[1] 李国祥[1] 

机构地区：[1]山东大学,山东济南250061 [2]潍坊恒安散热器集团有限公司,山东潍坊262100

出　　处：《内燃机与动力装置》2011年第5期25-27,共3页Internal Combustion Engine & Powerplant

摘　　要：针对某款设计中的公交车,利用Fluent对其热管理系统进行了分析,结果显示该车在计算工况下冷却模块性能较差,发动机舱内局部区域空气温度已达100°以上。其主要原因包括高温空气的回流,上隔板对空气流动的阻挡和中冷器上气室对散热器的不良影响。结构改进后,冷却模块工作条件得到很大改善,满足设计要求。The analysis on the heat management system of a bus under design has been proceeded by the CFD simulation software Fluent. The results show that the cooling package of the bus on the calculation condition works in a poor environment. Some air temperature o is above 100°. The main reasons are on recirculation of high temperature air, block of the upper barrier on the air flow and the bad influence of the CAC upper chamber on the radiator. The work environment of the cool- ing package is greatly improved after some structural modifications are made, so the system meets the design demand.

关 键 词：CFD 热管理 回流 

分 类 号：O357[理学—流体力学] TK124[理学—力学]