Simulation of working pocess of LNG direct-injection engine
1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. Chinese Automobile Research Institute, Chongqing 400039, China）
Abstract：Taking a LNG direct-injection engine converted from a four-valve gasoline engine vehicle as the study object, a numerical simulation of working process for a LNG direct-injection engine was carried out by using computational fluid dynamics software STAR - CD. The dynamic characteristics for flow, temperature and pressure fields, and emission in the working process were analyzed. Calculation results show that the perplexing turbulence around the inlet valve and cylinder during the inlet process can lead to energy losses. With the inlet process continuing, the cylinder pressure will become uniform. The partial hyperpyrexia can be caused in cylinder during the combustion process.
基金资助:
基金项目：国家“863”计划项目（2006AA11A1B4）
引用本文:
罗福强, 袁承志, 邹博文, 李静波, 曹辉. 缸内直喷LNG发动机工作过程的数值模拟[J]. 江苏大学学报（自然科学版）, 2009, 30(5): 471-474.
Luo Fuqiang, Yuan Chengzhi, Zou Bowen, Li Jingbo, Cao Hui. Simulation of working pocess of LNG direct-injection engine[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2009, 30(5): 471-474.
2009, Vol. 30 
