1998 年 18 巻 71 号 p. 286-294
A numerical analysis and visualization of the flow and mixing of rich mixture and air inducted into the cylinder through each of the two intake ports of a stratified charge engine have been carried out. Numerical calculations were performed by finite volume method for three types of the intake port configurations: inverse V type, parallel type and V type. Velocity field, flow pattern, turbulent kinetic energy and distribution of mixture concentration in the cylinder during intake and compression strokes were examined. Effects of configurations of the two intake ports on the characteristics of flow and mixing in the cylinder were made clear.