Analysis on the Mixing Process in a Heavy-Duty Diesel Engine under Different Conditions of Spray Position

被引：0

作者：

Yuan, Ye ^{[1
]}

Li, Guoxiu ^{[1
]}

Yu, Yusong ^{[1
]}

Xu, Yangjie ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Mech & Elect Control Engn, Beijing 100044, Peoples R China

来源：

THERMAL, POWER AND ELECTRICAL ENGINEERING, PTS 1 AND 2 | 2013年 / 732-733卷

关键词：

Diesel Engine; Spray Position; Fuel Air Mixing; Deviation of Spray Centroid;

D O I：

10.4028/www.scientific.net/AMR.732-733.387

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In order to investigate the influence of spray position on fuel air mixing quality, three-dimensional numerical simulation of the working process of a heavy-duty diesel was conducted. To quantitatively study the mechanism of the effect of spray position on fuel air mixing process, the deviation of spray centroid was introduced to describe the spray position change in combustion chamber. The results show that the gas intake swirl can affect the spatial distribution of spray in combustion chamber under three directions in cylindrical coordinate, in which the circumferential distribution is affected most. It then can be concluded that the spray can be limited to the vicinity of the combustion chamber axis. Better spray position, which is more helpful for the process of fuel air mixing and combustion, can be achieved by using optimal swirl, so that the power performance will be improved.

引用

页码：387 / 391

页数：5