双进气道柴油机缸内流场三维瞬态数值模拟  

3D Transient Numerical Simulation of Flow Field in Cylinder of Diesel Engine with Double-intake Port

作　　者：胡云萍[1] 李秋霞[1] 

机构地区：[1]聊城大学汽车与交通工程学院,山东聊城252059

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

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.

关 键 词：柴油机 数值模拟 涡流 滚流 

分 类 号：TK421.3[动力工程及工程热物理—动力机械及工程]