【摘要】 以具有屋顶型燃烧室的四气门汽油机MV377为例,结合改进的KIVA3V程序,提出了一种适应于该类型燃烧室的分块结构化网格划分策略及相应的动态网格调整方法,并基于该方法所生成的网格完成了汽油机缸内流动过程瞬态数值计算.结果表明用该方法能保证网格生成质量,满足计算精度要求.更多还原

【Abstract】 In the paper,a strategy of grid generation of the combustion chamber is put forward,and a dynamic grid adjustment method is established based on KIVA3V code.Then,the dynamic grid is used to calculate the intake process of the gasoline engine MV377,which is combustion chamber of pentroof and has four valves.The computation result shows that the method can ensure quality of the grid generation and satisfy demand of the calculation precision.更多还原