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| 柴油机燃用小桐子油的喷油及燃烧过程模拟 | |
| 引用本文： | 王子玉,罗福强,梁昱,郭健.柴油机燃用小桐子油的喷油及燃烧过程模拟[J].江苏大学学报(自然科学版),2012,33(2):150-154. |
| 作者姓名： | 王子玉 罗福强 梁昱 郭健 |
| 作者单位： | 1. 江苏大学汽车与交通工程学院,江苏镇江212013;中国北方发动机研究所,山西大同037036 2. 江苏大学汽车与交通工程学院,江苏镇江,212013 3. 贵阳学院机电系,贵州贵阳,550003 |
| 基金项目： | 贵州省教育厅自然科学基金资助项目(黔科教2010064);江苏大学博士创新计划项目(CX10B-005X) |
| 摘 要： | 运用三维CFD软件,建立柴油机分别燃用纯柴油和小桐子油的计算模型.分析了柴油机燃用2种燃油的燃烧过程,模拟了喷雾的发展历程,通过在一台单缸直喷式柴油机上燃用柴油、小桐子油的试验来验证模型,模拟所得结果与试验结果较为吻合.通过对2种燃料的油滴颗粒发展和缸内燃油质量分数分布进行比较,对喷雾特性差异的成因进行了探讨.结果表明:不同燃油的质量分数分布变化的趋势大体相同,与柴油相比,小桐子油在喷射的初始阶段的喷射速度较柴油的略大,但主喷射期的喷射速度较低,油束的贯穿距离较小,小桐子油的喷射时间较早,在开始喷射后,小桐子油的质量分数分布变化速度明显小于柴油,到了燃烧后期,其燃油质量分数较高的区域较大. |
| 关 键 词： | 直喷柴油机 小桐子油 喷油过程 三维模拟 燃烧 |
Simulation of fuel injection and combustion process in diesel engine fueled with Jatropha curcas oil |
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| Wang Ziyu , Luo Fuqiang , Liang Yu , Guo Jian.Simulation of fuel injection and combustion process in diesel engine fueled with Jatropha curcas oil[J].Journal of Jiangsu University:Natural Science Edition,2012,33(2):150-154. | |
| Authors: | Wang Ziyu Luo Fuqiang Liang Yu Guo Jian |
| Institution: | 1(1.School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;2.China North Engine Research Institute,Datong,Shanxi 037036,China;3.Department of Mechanical and Electronic Engineering,Guiyang University,Guiyang,Guizhou 550003,China) |
| Abstract: | Based on three dimension CFD software,a simulation model was established for the work processes of diesel engine fueled with diesel or Jatropha curcas oil.The combustion process and spray development process of different fuels were simulated.The verifying of proposed model on single-cylinder direct injection diesel engine illuminates that simulation results are well consistent with test results.The spray development process and the fuel mass fraction distribution of 2 fuels were compared to discuss the spray difference.The results show that the distribution variation tendency of fuel mass fraction for diffe-rent fuels is similar.The spray speed of Jatropha curcas oil is slightly larger at early injection stage and slower at main injection stage than those of diesel with low spray penetration.The injection timing of Jatropha curcas oil is early with smaller fuel mass fraction variation velocity than that of diesel.The zone of high fuel mass fraction of Jatropha curcas oil at later combustion stage is larger than that of diesel. |
| Keywords: | direct injection diesel engine Jatropha curcas oil fuel injection process three dimension simulation combustion |
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