A FUEL-SPRAY SIMULATION CONSIDERING FUEL-JET BREAKUP NEAR FUEL INJECTOR AND COMPOSITION OF AIR/FUEL MIXTURE

被引：0
|
作者：
Ishii, Eiji [1 ]
Yasukawa, Yoshihito [1 ]
Sukegawa, Yoshihiro
Yamada, Hiroshi
机构：
[1] Hitachi Ltd, Mech Engn Res Lab, Hitachinaka, Ibaraki, Japan
来源：
IMECE 2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, VOL 9, PTS A-C | 2010年
关键词：
FLUID; FLOW;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
To simulate multi-scale free surfaces in the fuel spray of an injector for automobile engine, we combined a liquid-film-breakup simulation and an air/filet-mixture simulation. The liquid-film breakup near the injector outlet was simulated by using a particle method, and the air/fuel mixture after the liquid-film breakup was simulated by using a "discrete droplet model" (DDM). Distributions of droplet diameters and velocities, calculated in the liquid-film breakup simulation, were used as the injection condition of DDM. We applied our new method to simulate the spray from a collision fuel injector. The simulation results were verified by comparing them with measurements. The liquid-film breakup near the injector outlet and the behavior of the air/fuel mixture qualitatively agreed with the measurements. We found that out new method was useful to the fuel-spray simulation for automobile engines.
引用
收藏
页码：1819 / 1825
页数：7
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