| 电喷稀薄燃烧天然气发动机进气过程的数值解析 |
| |
| 引用本文： | 梁夫友,许伯彦. 电喷稀薄燃烧天然气发动机进气过程的数值解析[J]. 山东大学学报(工学版), 2003, 33(1): 9-13 |
| |
| 作者姓名： | 梁夫友 许伯彦 |
| |
| 作者单位： | 250014,山东省,济南市,山东建筑工程学院;250014,山东省,济南市,山东建筑工程学院 |
| |
| 基金项目： | 教育部留学归国博士科研基金，山东省自然科学基金 (Y2 0 0 0F0 7) |
| |
| 摘 要： | 用数值模拟的方法考察了将稀薄燃烧汽油机的纵向直进气道应用于MPI方式天然气发动机时 ,天然气喷射后进气岐管内的燃料浓度场和压力场 ,以及进气终了天然气—空气混合气在气缸内的浓度分布和速度分布 ;结果表明吸气阀打开后 ,经两吸气阀先期吸入的天然气在向内弯曲的纵向滚流的作用下被挤向吸气阀底部下方附近 ,与后期吸入的空气明显呈分层充气构造
|
| 关 键 词： | 数值模拟 滚流 天然气/稀薄燃烧发动机 |
| 文章编号： | 1000-5323(2003)01-0009-05 |
| 修稿时间： | 2002-08-14 |
NUMERICAL ANALYSIS OF INTAKE PROCESS IN MPI LEAN BURN NATURAL GAS ENGINE |
| |
| LIANG Fu you,XU Bo yan. NUMERICAL ANALYSIS OF INTAKE PROCESS IN MPI LEAN BURN NATURAL GAS ENGINE[J]. Journal of Shandong University of Technology, 2003, 33(1): 9-13 |
| |
| Authors: | LIANG Fu you XU Bo yan |
| |
| Abstract: | Both the concentration distribution and pressure field of natural gas in intake manifold after the natural gas having been injected, together with the velocity vector map and distribution of natural gas in cylinder in intake process were numerically simulated for a lean burn natural gas engine with longitudinal straight intake manifold. After the intake valves are opened, the natural gas firstly inbreathed through the two intake valves is centralized under the bottoms of intake valves due to the inflexed longitudinal vortex formed in cylinder,that makes the primal inbreathed natural gas and the inbreathed air appear to be a layered gas mixture in the cylinder. |
| |
| Keywords: | Numerical simulation Vortex Natural gas/Lean burn engine |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
