受限条件下燃油喷雾特性的实验研究

EXPERIMENTAL INVESTIGATION OF EFFECTS OF FUEL INJECTION PARAMETERS AND CHAMBER WALL CONFINEMENT ON SPRAY CHARACTERISTICS IN CONSTANT VOLUME BOMB

在多功能模拟实验装置上,利用激光阴影法和气体模拟技术研究了喷射压力、喷孔尺寸和燃烧室壁面限制对燃油喷雾特性的影响;测量了动态燃油喷雾的结构和喷雾浓度的时空分布。

An investigation on the effects of fuel injection parameters and chamber wall confinement on the spray characteristics was conducted in a constant volume bomb by using the high speed laser shadowgraphy and the technique of gaseous simulation. The results obtained by high speed laser shadowgraphy and gaseous simulation are consistent and are complementary to each other. The combined use of these two methods is very effective in the study of fuel spray characteristics.