基于CFD发动机进气歧管内气体流动仿真分析  

Analysis of Gas Flow in Intake Manifold of Engine Based on CFD Simulation

作　　者：李天鹏[1] 杨良勇[1] 彭来森[1] 

机构地区：[1]四川工程职业技术学院车辆工程系,四川德阳618000

出　　处：《现代车用动力》2016年第4期20-22,58,共4页Modern Vehicle Power

摘　　要：应用Fluent软件对发动机进气管和进气歧管中的气体进行模拟并分析其流动特性,通过对进气总管入口端的合理布置及对稳压腔结构的合理设计,来增加各进气歧管的进气量及使各歧管的进气趋于均匀,对改进后的结构进行气体流动特性的模拟显示,改进后的进气歧管的进气性能得到改善。Using Fluent snflware the gas flow in intake pipe and intake manifnld of the engine is simulated, and its flow characteristics is analyzed. In order to increase air inflnw in the intake manifold and to make air intake tend to uniform in the manifold, both the rea- sonable arrangement of the inlet maniflold entrance and reasonable design the of saugrohrtrommel structure are inade. According to sim- ulation resuhs the inlet performance in the improved intake manifold is greatly improved.

关 键 词：发动机 进气歧管 稳压器 流动特性 

分 类 号：TH16[机械工程—机械制造及自动化]