Numerical Simulation on Effect of Nozzle-Hole Layout on Spray Characteristics and Combustion in a DI Diesel Engine

被引：0
|
作者：
Zhang, Jun [1 ]
Zhao, Changpu [1 ]
Chen, Naizhuan [1 ]
Dong, Dalu [1 ]
Zhong, Bo [1 ]
机构：
[1] Tianjin Univ, State Key Lab Engines, Tianjin 300072, Peoples R China
来源：
NEW MATERIALS AND PROCESSES, PTS 1-3 | 2012年 / 476-478卷
关键词：
Spray Characteristics; Combustion; Nozzle-Hole Layout; Group-Hole; Numerical Simulation;
D O I：
10.4028/www.scientific.net/AMR.476-478.448
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Diesel spray characteristics are closely related to the combustion of the engine where the spray tip penetration and the fuel atomization play a key role especially for direct injection (DI) diesel engine. With different nozzles, the fuel atomization and evaporation will be different thereby affecting the combustion and emission characteristics. A three-dimensional model is built based on the parameters of a DI diesel engine, and its validation is also validated. Three nozzle-hole layouts are designed in this research, including the conventional hole, multi-hole, and group-hole. The spray characteristics and combustion process are studied with three different nozzle-hole layouts by the way of numerical simulation. Further more, the effect of inter-hole spacing of group-hole nozzles on the evaporation rate and combustion process is researched here.
引用
收藏
页码：448 / 452
页数：5
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