汽油机进气压缩过程的三维瞬态数值模拟  

Three Dimensional Transient Numerical Simulation of Gasoline Engine Intake Compression Process

作　　者：陆金华 牛彩云 李延深 廖礼平 

机构地区：[1]柳州五菱柳机动力有限公司,广西柳州545005

出　　处：《装备制造技术》2015年第9期85-87,93,共4页Equipment Manufacturing Technology

摘　　要：利用fluent对某型汽油机的进气压缩过程进行三维瞬态数值模拟。模拟结果表明该型汽油机的双气门进气道布置使得涡流很弱,而滚流很强。滚流能量全靠进气过程壁面和活塞对气流的阻挡形成,而凹顶活塞能够很好地保留滚流能量。The three-dimensional transient numerical simulation of the air intake compression process of a gasoline engine using FLUENT is carried out. The simulation results show that this type of gasoline engine with double valve inlet arranged so that the eddy current is very weak, strong and tumble. The flow energy is formed by the intake process wall and the piston to the air flow, and the concave top piston can retain the flow energy.

关 键 词：汽油机 三维瞬态 数值模拟 缸内 

分 类 号：TK412[动力工程及工程热物理—动力机械及工程]