摘要
介绍了运用高速纹影摄影对火花点火发动机循环变动特性的研究.确定了纹影摄影胶片中可用于循环变动研究的部分,并对其进行了分析.结果表明:火花点火发动机的燃烧循环变动在燃烧一开始就已产生,并且表现为火焰中心、火焰速度、当量火焰半径、点火延迟时间、临界火焰半径、临界火焰速度等的变动.
This paper studies the characteristics of cyclic combustion variation in spark ignition engines by using high speed schlieren photographs. How to determine the parts of schlieren photograph which can be used for the study of cyclic combution variations and their analyses are presented. The results indicate that cyclic combustion variations originate during the initial burn period and the variations are consistent with the change of the flame center positions, flame velocity, flame radius, ignition delay time,critical radius and critical velocity.
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
1993年第5期95-100,110,共7页
Journal of Xi'an Jiaotong University
基金
博士点基金
关键词
发动机
燃烧
纹影摄影
循环变动
spark ingition engine
combustion
cyclic variation
schieren photograph
