王艳华,高 峰,杨世春,许俊峰,刘汉涛.缸内直喷汽油机多孔喷雾破碎模型研究[J].农业机械学报,2014,45(3):20-25.
Wang Yanhua,Gao Feng,Yang Shichun,Xu Junfeng,Liu Hantao.Spray Break-up Model of Multi-hole Injector on Gasoline Direct Injection Engine[J].Transactions of the Chinese Society for Agricultural Machinery,2014,45(3):20-25.
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缸内直喷汽油机多孔喷雾破碎模型研究   [下载全文]
Spray Break-up Model of Multi-hole Injector on Gasoline Direct Injection Engine   [Download Pdf][in English]
投稿时间:2013-04-16  
DOI:10.6041/j.issn.1000-1298.2014.03.004
中文关键词:  缸内直喷汽油机 多孔喷油器 破碎模型 自由喷雾
基金项目:国家自然科学基金资助项目(50606014)和中国博士后科学基金资助项目(2013M540034)
作者单位
王艳华 中北大学,北京航空航天大学 
高 峰 北京航空航天大学 
杨世春 北京航空航天大学 
许俊峰 中北大学 
刘汉涛 中北大学 
中文摘要:为了建立缸内直喷汽油机多孔喷油器喷雾破碎模型,对FIPA模型、Huh Gosman模型和KH-RT模型进行分析评估,确定了缸内汽油直喷二次破碎模型;以喷油压力为参数,基于初始破碎粒径分布公式,建立了缸内汽油直喷喷雾破碎模型;最后通过定容喷雾实验进行汽油自由喷雾实验,验证所建模型的合理性。研究结果发现:Huh Gosman模型在汽油喷雾模拟过程中,模拟结果与实际喷射过程最为接近;FIPA模型在相应模拟条件下,液滴的破碎速度过快;而KH-RT模型在该喷射条件下,液滴的破碎速度过慢。〖JP2〗通过对Huh Gosman模型进行修正,模拟计算结果与实际结果相近。最后利用该模型对不同喷油压力下的自由喷雾进行模拟,计算结果与实验结果吻合较好。
Wang Yanhua  Gao Feng  Yang Shichun  Xu Junfeng  Liu Hantao
North University of China,Beihang University;Beihang University;Beihang University;North University of China;North University of China
Key Words:Gasoline direct injection engine Multi-hole injector Break-up model Free spray
Abstract:In order to establish break-up model of multi-hole injection on gasoline direct injection engine, an analysis and evaluation on FIPA model, Huh Gosman model and KH-RT model has been done. The second break-up model was built for gasoline direct injection in cylinder, and the primary break-up particle size distribution formula was also built based on injection pressure. So the break-up model of gasoline direct injection in cylinder was established. At last, by carrying out capacity spray experiments, gasoline free spray experiments were done to verify the reasonability of the established model. It was found that Huh Gosman model has the best simulation results compared with other models. The droplets break relatively too fast with FIPA model and too slowly with KH-RT under the same simulation condition. After modifying Huh Gosman model, the simulation results showed close to the practical ones. At last, free sprays under different injection pressures were simulated with the above established model. Calculation results match well with the experimental results.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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