The effect of injector position on the performance of a homogeneous direct injection gasoline engine

Author

Yang Xiaolong ; Yang Jia ; Hu Kaiyao

Author_Institution

State Key Lab. of Adv. Design & Manuf. for Vehicle Body, Hunan Univ., Changsha, China

fYear

2011

fDate

15-17 April 2011

Firstpage

6256

Lastpage

6259

Abstract

The effect of injector position on the performance of a homogeneous gasoline direct injection (GDI) engine is studied by 3-dimensional multiphase simulation. The Reitz-Diwakar droplet break-up model and the 3 Zones Extended Coherent Flame Model (ECFM3Z) combustion model are adopted. Two different positions of injector are investigated. By comparing the velocity field, droplet distribution, atomization percent and the pressure, it was found that the position of the nozzles has great influence on the performance of the engine. Optimizing the position will increase the atomization and generate uniform mixed gas, which leads to better combustion.

Keywords

chemically reactive flow; combustion; confined flow; drops; flames; flow simulation; gas mixtures; internal combustion engines; nozzles; sprays; 3 zone extended coherent flame model combustion model; 3-dimensional multiphase simulation; Reitz-Diwakar droplet break-up model; atomization percent; droplet distribution; homogeneous gasoline direct injection engine; injector position optimization; nozzles; uniform mixed gas; velocity field; Combustion; Computational fluid dynamics; Engines; Fires; Petroleum; Solid modeling; Engine; Spary; injectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-8036-4

Type

conf

DOI

10.1109/ICEICE.2011.5776809

Filename

5776809