基于AVL FIRE的M85燃烧特性研究  

Burning Characteristics of M85 Based on AVL FIRE

作　　者：贾文建[1] 霍炜[2] 彭升[2] 刘高君[2] 盛建[2] 

机构地区：[1]长城汽车股份有限公司,河北保定071000 [2]青岛大学机电工程学院,山东青岛266071

出　　处：《汽车零部件》2016年第10期45-48,共4页Automobile Parts

摘　　要：利用AVL FIRE建立定容燃烧弹模型并模拟不同初始温度、过量空气系数以及初始压力对M85燃烧特性影响。研究结果表明：随着初始温度的升高（423.15~573.15 K）,M85燃烧速率明显增加,燃烧持续期变短;随着初始压力的升高（0.8~1.2MPa）,M85燃烧速率减慢,燃烧持续期增长;随着过量空系数的增大（1~1.4）,燃烧速率变慢,滞燃期及持续时间延长。AVL FIRE was used to establish constant volume bomb model and to simulate the influences of different initial temperatures, excess air ratio and initial pressure on the M85 combustion characteristics. The results show： with the initial temperature rising （from 423. 15 to 573. 15 K）, M85 burning rate increases significantly, combustion duration becomes shorter; with the increase of initial pressure （from 0. 8 to 1.2 MPa）, burn rate slows down, combustion duration increases; with the excess air coefficient increasing （from 1 to 1.4）, burn rate slows down, the ignition delay period and the duration prolong.

关 键 词：M85燃烧特性 定容燃烧弹 压力 压力升高率 

分 类 号：U473.14[机械工程—车辆工程]