基于STAR-CCM+的进气道优化设计  

Optimization of intake port based on STAR-CCM+

作　　者：王东[1] 刘向东 WANG Dong;LIU Xiangdong(School of Automotive Studies,Tongji University,Shanghai 200092,China)

机构地区：[1]同济大学汽车学院,上海200092

出　　处：《内燃机与动力装置》2023年第2期30-35,共6页Internal Combustion Engine & Powerplant

基　　金：国家重点研发计划项目(2018YFB0104802)。

摘　　要：为提高进气道设计效率,缩短开发时间,基于STAR-CCM+的进气道优化设计方法,建立汽油机进气道稳态参数化模型,利用STAR-CCM+Design Manager中的Sherpa优化算法进行目标为y滚流比和进入燃烧室的新鲜空气质量流量最大化的多目标优化。仿真结果表明:y滚流比和进入燃烧室的新鲜空气质量流量之间存在明显的trade-off竞争关系;与基准设计相比,最优设计的y滚流比提升了15.6%,进入缸内的空气质量流量提升了22.3%。该研究方法可以实现快速自动化的汽油机进气道优化设计,减少设计周期,提高设计效率。In order to improve the efficiency of intake port design and shorten development time,a steady-state parameterized model of gasoline engine intake ports is established based on the STAR-CCM+intake port optimization design method.The Sherpa optimization algorithm in STAR-CCM+Design Manager is used for multi-objective optimization with the goal of maximizing the y-tumble ratio and the mass flow rate of fresh air entering the combustion chamber.The simulation results of the optimization scheme indicat that there is a clear trade-off competition relationship between the y-tumble ratio and the fresh air mass flow rate entering the combustion chamber.Compared with the benchmark design,the optimal design has an increase of 15.6%in y-tumble flow ratio and an increase of 22.3%in air mass flow into the cylinder.This research method could achieve automated optimization design of gasoline engine intake ports,reduce design cycles,and improve design efficiency.

关 键 词：进气道 STAR-CCM+ y滚流比 空气质量流量 

分 类 号：TK413.44[动力工程及工程热物理—动力机械及工程]