摘要
为了实现对火花点燃式转子发动机工作过程的动态模拟,建立了相应的湍流和燃烧模型。在此基础上,计算得到了转子发动机缸内的流场、温度场演变及火焰传播过程。并在相同点火条件下,分析了不同点火位置对缸内燃烧过程的影响。研究结果表明:点火位置位于湍流到单向流的过渡区域时,压力峰值增大,但同时缸内平均温度增大,NO排放量也相应增加。
To realize dynamic simulation of rotary engine working process, combustion and turbulent flow models were established for a spark-ignition rotary engine. Based on them the in-cylinder gas flow-field, temperature field and flame propagation process were simulated. Furthermore, effect of ignition position on the flame propagation was examined in the same ignition condition. The results show that when the ignition position is located between turbulent and unidirectional flow regions, peak pressure increases, meanwhile average temperature in cylinder and NO emission increase accordingly.
出处
《内燃机工程》
EI
CAS
CSCD
北大核心
2013年第1期1-7,共7页
Chinese Internal Combustion Engine Engineering
基金
江苏省六大人才高峰第八批资助项目(装备制造201127)
江苏省高校优势学科建设工程资助项目
江苏大学"拔尖人才培养工程"资助项目
关键词
内燃机
转子发动机
点火位置
天然气
燃烧过程
二维模拟
IC engine
rotary engine
ignition position
natural gas
combustion process
two-dimensional simulation
