湍流参数对燃烧循环变动影响的模拟分析

Simulative Analysis of Influence of the Turbulent Flow Parameters on Cyclic Combustion Variation

建立了汽油机准维卷吸燃烧模型 ,编制了计算程序。用该模型分析了点火时刻湍流参数的变化对燃烧循环变动的影响 ,为试验研究这一问题提供了参考 ,并为以后建立燃烧循环变动模型奠定了基础。

In this paper, a quasi dimensional combustion model is proposed for gasoline engines. All calculation results are compared with the experimental data and the references concerned as well. The effect of the change of in cylinder turbulent flow parameters at spark ignited time on the cyclic combustion variation is predicted using a quasi dimensional combustion model, which lays a foundation for the development of cyclic combustion variation model.