|
|||||
|
|
| Velocity and Size of Droplets in Dense Region of Diesel Fuel Spray on Transient Needle Opening Condition | |
| 引用本文： | Hironobu UEKI,Masahiro ISHIDA,Daisaku SAKAGUCHI. Velocity and Size of Droplets in Dense Region of Diesel Fuel Spray on Transient Needle Opening Condition[J]. 热科学学报(英文版), 2005, 14(2): 181-186. DOI: 10.1007/s11630-005-0030-2 |
| 作者姓名： | Hironobu UEKI Masahiro ISHIDA Daisaku SAKAGUCHI |
| 作者单位： | Nagasaki University 1-14 Bunkyo-machi，Nagasaki 852-8521，Japan，Nagasaki University 1-14 Bunkyo-machi，Nagasaki 852-8521，Japan，Nagasaki University 1-14 Bunkyo-machi，Nagasaki 852-8521，Japan |
| 摘 要： | In order to investigate the effect of transient needle opening on early stage of spray behavior, simultaneous measurements of velocity and size of droplet were conducted by a newly developed laser 2-focus velocimeter (L2F). The micro-scale probe of the L2F was consisted of two foci with a distance of 36 μm. The tested nozzle had a single hole with a diameter of 0.2 mm. The measurements of injection pressure, needle lift, and crank angle were synchronized with the spray measurement by the L2F at the position 10 mm downstream from the nozzle exit. It has been clearly shown that the velocity and size of droplet increase with needle valve opening and that the probability density distribution of droplet size can be fitted to the Nukiyama-Tanasawa distribution under the transient needle opening condition. |
| 关 键 词： | 液滴分解 光学特征 激光2-聚焦速度计 柴油机 油料喷嘴 |
| 收稿时间： | 2005-03-14 |
Velocity and size of droplets in dense region of diesel fuel spray on transient needle opening condition |
|
| Hironobu Ueki,Masahiro Ishida,Daisaku Sakaguchi. Velocity and size of droplets in dense region of diesel fuel spray on transient needle opening condition[J]. Journal of Thermal Science, 2005, 14(2): 181-186. DOI: 10.1007/s11630-005-0030-2 | |
| Authors: | Hironobu Ueki Masahiro Ishida Daisaku Sakaguchi |
| Affiliation: | (1) Nagasaki University, 1-14 Bunkyo-machi, 852-8521 Nagasaki, Japan |
| Abstract: | In order to investigate the effect of transient needle opening on early stage of spray behavior, simultaneous measurements of velocity and size of droplet were conducted by a newly developed laser 2-focus velocimeter (L2F). The micro-scale probe of the L2F was consisted of two foci with a distance of 36 μm. The tested nozzle had a single hole with a diameter of 0.2 mm. The measurements of injection pressure, needle lift, and crank angle were synchronized with the spray measurement by the L2F at the position 10 mm downstream from the nozzle exit. It has been clearly shown that the velocity and size of droplet increase with needle valve opening and that the probability density distribution of droplet size can be fitted to the Nukiyama-Tanasawa distribution under the transient needle opening condition. |
| Keywords: | droplet disintegration optical characterization laser 2-focus velocimeter. |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ | |