Title :
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
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;
Conference_Titel :
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-8036-4
DOI :
10.1109/ICEICE.2011.5776809
