端面和周边进气转子机混合气形成与燃烧特性的对比研究
Comparative study of mixture formation and combus-tion characteristics of end-face and peripheral intake rotary engine
基于CONVERGE，构建经试验验证的汽油/氢气双燃料转子机三维模型，对比分析端面进气和周边进气对掺氢转子机缸内流场、燃烧过程以及排放物形成与分布的影响。结果表明：两种进气方式缸内流场的变化规律类似；端面进气涡量变化幅度较大；点火时刻端面进气缸内流速比周边进气快7 m/s。相比于周边进气燃烧过程，端面进气的OH、H、O生成量更多，速率更快，火焰传播过程也较快；两种方式缸压峰值和温度最大值均随掺氢量增加而升高，相同工况下周边进气较小。排气门打开时端…查看全部>>
Based on CONVERGE, a three-dimensional model of gasoline/hydrogen dual-fuel rotary engine verified by experiments was constructed to compare and analyze the effects of end-face intake and peripheral intake on the in-cylinder flow field, combustion process, and the formation and distribution of emissions of the hydrogen-doped rotor machine. The results show that: the variation rules of in-cylinder flow field are similar between the two types of air intake; th…查看全部>>
雷健;史程;
TK411+.2
hydrogen-doped dual-fuel rotary engine combustibility end-face air intake peripheral air intake
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