柴油机螺旋进气道三维造型设计与CFD分析  

3D Design and CFD Analysis of Helical Intake Port for Diesel Engine

作　　者：王鑫鑫[1] 雷基林[1] 申立中[1] 毕玉华[1] 贾德文[1] 

机构地区：[1]昆明理工大学云南省内燃机重点实验室,云南昆明650224

出　　处：《车用发动机》2011年第5期24-28,共5页Vehicle Engine

基　　金：云南省应用基础研究基金项目(2009ZC036M);云南省内燃机重点实验室开放基金项目(200903)

摘　　要：针对UG的曲线、曲面和实体模型构建等问题,采用了基于草图和基于实体两种方法建立了柴油机螺旋进气道的三维模型,实现了进气道局部的参数化设计。利用数值模拟和测试试验相结合的方法,验证了计算模型的可靠性,对气道在不同气门升程下的流动特性进行了分析。结果表明,涡流比和流量系数随气门升程的增加而增大。For the curve,curved surface and solid model building of UG,the 3D model of helical intake port for diesel engine was built with the method of sketch and solid, which realized the partial parametric design of helical intake port. Through the numerical simulation and actual experiment, the reliability of calculated model was verified. Based on that, the flow characteristics of helical intake ports at different lifts were analyzed. The results show that the swirl ratio and flow coefficient increase with the increase of valve lift.

关 键 词：螺旋进气道 柴油机 参数化设计 计算流体动力学 

分 类 号：TK423.45[动力工程及工程热物理—动力机械及工程]