摘要
利用计算流体力学(CFD)软件Fire对某双进气道柴油机进气-压缩过程进行了三维瞬态数值模拟,获得了进气—压缩过程中气缸内部流场的变化规律,探讨了涡流的形成、发展以及稳定的全过程,为柴油机的改型和优化提供了重要的理论依据。
The 3D transient numerical simulation for intake and compression processes of diesel engine with double-intake port is performed using CFD code Fire. The distribution characteristics of in-cylinder flow field are provided, which reveal the detailed process of swirl formation, development and stability. The calculated results give important information for the optimal design of diesel engine.
出处
《农业装备与车辆工程》
2010年第3期30-33,37,共5页
Agricultural Equipment & Vehicle Engineering
关键词
柴油机
数值模拟
涡流
滚流
diesel engine
numerical simulation
swirl
tumble
