基于多物理场耦合的发动机温度仿真研究  

Simulation Research of Engine Temperature based on Multi Physical Field Coupling

作　　者：王毓琨[1] 顾宁[1] 吴小飞[1] WANG Yukun;GU Ning;WU Xiaofei

机构地区：[1]泛亚汽车技术中心有限公司,上海201208

出　　处：《上海汽车》2023年第1期51-56,共6页Shanghai Auto

摘　　要：文章利用STAR-CCM+软件,对发动机温度仿真进行了深入研究,通过与试验对标,建立并优化沸腾模型,通过对活塞与缸套换热边界的研究,引入冷却喷嘴、PCV冷却和摩擦热,提高了温度场的计算精度。建立了多物理场耦合的发动机温度仿真流程体系,可以用于指导设计开发,评估爆震趋势,避免膜态沸腾,并预估暖机时间,为发动机疲劳耐久仿真提供热边界,为发动机热管理系统设计提供重要依据。STAR-CCM+ software is used to conduct in-depth research on engine temperature simulation. Through benchmarking with the test,boiling model is established and optimized. Through the research on heat transfer boundary between piston and cylinder liner,cooling nozzle,PCV cooling and friction heat are introduced to improve the accuracy of temperature field calculation. A multi physical field coupling engine temperature simulation process system has been established,which can be used to guide design and development,evaluate detonation trend,avoid mode boiling,and estimate warm-up time,to provide a thermal boundary for engine fatigue durability simulation,and provide an important basis for engine thermal management system design.

关 键 词：多物理场耦合 温度场 STAR-CCM+软件 仿真 沸腾模型 

分 类 号：U467.2[机械工程—车辆工程]