首页|期刊导航|热科学学报（英文版）|Measurement of droplet size distribution in core region of high-speed spray by micro-probe L2F
热科学学报（英文版）2008，Vol.17Issue(1)：90-96,7.
Measurement of droplet size distribution in core region of high-speed spray by micro-probe L2F
Measurement of droplet size distribution in core region of high-speed spray by micro-probe L2F
摘要
Abstract
In order to investigate the distribution of droplet sizes in the core region of diesel fuel spray, instantaneous measurement of droplet sizes was conducted by an advanced laser 2-focus velocimeter (L2F). The micro-scale probe of the L2F is made up of two foci and the distance between them is 36 μm. The tested nozzle had a 0.2 mm diameter single-hole. The measurements of injection pressure, needle lift, and crank angle were synchronized with the measurement by the L2F at the position 10 mm downstream from the nozzle exit. It is clearly shown that the droplet near the spray axis is larger than that in the off-axis region under the needle full lift condition and that the spatial distribution of droplet sizes varies temporally. It is found that the probability density distribution of droplet sizes in the spray core region can be fitted to the Nukiyama-Tanasawa distribution in most injection periods.关键词
droplet disintegration, optical characterization, laser 2-focus velocimeterKey words
droplet disintegration, optical characterization, laser 2-focus velocimeter分类
数理科学引用本文复制引用
Daisaku Sakaguchi,Oluwo le Amida,Hironobu Ueki,Masahiro Ishida..Measurement of droplet size distribution in core region of high-speed spray by micro-probe L2F[J].热科学学报（英文版）,2008,17(1):90-96,7.基金项目
This investigation was supported by a Grant-in-Aid for Scientific Research through grant number 16560151 from Japanese Society for the Promotion of Science. （）
