发动机燃烧室通道结构参数对气流运动的影响

A CFD Study of the Effect of Combustion Chamber Passage Configuration of Engine on the Current Motion

以分隔室式天然气发动机为研究对象,利用CFD多维数值模拟计算软件,研究了燃烧室通道结构参数对压燃式天然气发动机缸内气流运动的影响。计算结果表明,燃烧室通道截面积、通道倾角、通道形状、通道布置对气流运动的形式及气流速度均有较大的影响。

A study about the effect of combustion chamber passage configuration on air plow field is performed in a compression ignition natural gas engine with a separated combustion chamber using Multi-dimensional Computational Fluid Dynamics （CFD） code. It is concluded that the combustion chamber passage area, passage direction, passage shape and passage position have a strong effect on in-cylinder current motion and flow speed.