农业机械学报2013，Vol.44Issue(3)：12-16,5.DOI:10.6041/j.issn.1000-1298.2013.03.003
汽油缸内多孔直喷喷雾破碎模型建立与试验
Spray Break-up Model Establishment and Experiment of Multi-hole Injector on Gasoline Direct Injection Engine
摘要
Abstract
In order to establish spray break-up model of multi-hole injection on gasoline direct injection engine, Huh Gosman model was analyzed and evaluated. The primary break-up particle size distribution formula was built based on injection pressure. The spray break-up model was built for gasoline direct injection in cylinder. Finally, by establishing the capacity spray experiments, gasoline free spray experiments were carried out to verify the rationality of the model. It is found that estimating initial droplet size by experience formula to evaluate second break-up model, the spray penetration calculated with Huh Gosman model is smaller than experimental results. Through establishing primary break-up particle size distribution formula and modifying Huh Gosman model, the simulation results and the practical results are close to each other. At last, free spray under different injection pressure were simulated with above established models. Results matches well with the experimental results and the maximum average error is less than 5% .关键词
缸内直喷汽油机/多孔喷油器/破碎模型/粒径分布函数Key words
Gasoline direct injection engine/Multi-hole injector/Spray break-up model/Particle size distribution function分类
能源科技引用本文复制引用
王艳华,杨世春,高峰,苏铁熊,董小瑞..汽油缸内多孔直喷喷雾破碎模型建立与试验[J].农业机械学报,2013,44(3):12-16,5.基金项目
国家自然科学基金资助项目(50606014) （50606014）
