涡流室柴油机燃烧过程模拟

Simulation of Combustion Process in Swirl Chamber of Diesel Engine

利用FLUENT软件构建了描述S195型涡流室单缸柴油机燃烧过程的三维数学物理模型,并对气体在涡流室内的运动情况进行了数值模拟分析,获得了缸内气体的压力变化、温度变化以及碳烟排放的情况。实测结果表明,该模型能够比较准确地模拟涡流室柴油机的燃烧过程。

By using FLUENT software, this paper constructed three-dimensional mathematical and physical model that describe the combustion process in swirl chamber S195 of the single-cylinder diesel engine. The numerical simulation and analysis were carried out to obtain the gas＇ movement in the swirl chamber, such as the gas＇ changes in pressure, temperature and the situation of soot emission. Furthermore, the experimental results indicated that the model could exactly simulate the combustion process at the diesel engine＇s swirl chamber.