高压共轨燃油喷雾特性数值模拟研究  

Research on Numerical Simulation of the Properties of High Pressure Fuel Spray

作　　者：邢志海 李刚 

机构地区：[1]广州汽车集团股份有限公司汽车工程研究院,广东广州511434 [2]北京现代汽车有限公司,北京101300

出　　处：《内燃机》2013年第4期13-16,21,共5页Internal Combustion Engines

摘　　要：利用FLUENT软件,基于DPM模型建立了高压共轨单孔喷油器燃油喷雾特性计算模型,并验证了模型的准确性。在此基础上,进行了高压燃油喷雾微观特性数值模拟研究。研究结果表明,喷射压力越大,液滴粒径越大,气体背压越大,液滴粒径越大。CFD code FLUENT was used to establish a fuel spray characteristics calculation model of high pressure common rail singlehole injector based on DPM model, and the accuracy of the model was also verified. Based on this, a numerical simulation of the properties of high pressure fuel spray was researched. The results show that the particle size increases with the increasing of injection pressure or the gas pressure.

关 键 词：高压共轨 喷雾场 粒径分布 数值模拟 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]