西安交通大学动力工程多相流国家重点实验室,西安,710049
网络首发:2013-11-10,
纸质出版:2013
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张猛, 王金华, 谢永亮, 等. CH4/H2/air预混湍流火焰前锋面结构探测[J]. 西安交通大学学报, 2013,47(11):14-18. DOI: 10.7652/xjtuxb201311003.
Measurement of Flame Front Structure of Turbulent Premixed Flames for CH4/H2/Air Mixtures[J]. 2013, 47(11): 14-18. DOI: 10.7652/xjtuxb201311003.
为了研究掺氢对天然气预混湍流火焰与流场的耦合作用
利用平面激光诱导荧光探测了CH
4
/H
2
/air预混湍流火焰前锋面结构。采用不同孔径和开孔比的湍流产生板在本生灯出口产生不同的湍流流场
定量测量了湍流流场的特征尺度
并计算了实验条件下的层流火焰特征参数
分析了掺氢和湍流强度、湍流尺度对CH
4
/air混合气预混湍流火焰中流场与火焰相互作用的影响。结果表明
掺氢明显地增强了火焰前锋面褶皱
火焰褶皱程度随湍流强度的增大而增强。火焰高度随掺氢比的增加而略有降低
随湍流强度增大而增加。掺氢引起火焰自身不稳定性增强
导致火焰前锋面受湍流扰动影响增强
引起预混湍流火焰前锋面褶皱增强。
The measurement of the flame front structure of CH
4
/H
2
/air flames was conducted using planar induced laser fluorescence(OH-PLIF)to study the effects of hydrogen blending on the premixed turbulence-flame interaction of natural gas. Various turbulence conditions were generated by perforated plates with different hole diameters and opening ratios. The scales of the turbulent flow were measured and the properties of laminar flames were calculated. The effects of hydrogen addition
turbulence intensity and turbulence scales on the flame-turbulence interaction of CH
4
/air turbulent premixed flames were discussed. The results show that the hydrogen addition significantly promoted the wrinkle intensity of the flame f
ront
and the wrinkle intensity of the flame front increased with an increase in turbulence intensity. The flame height decreased slightly with an increase in hydrogen fraction and increased with an increase in turbulence intensity. The hydrogen addition facilitated the flame intrinsic instability
leading to the active response of laminar flame to turbulence and the highly wrinkled OH-PLIF flame front structure.
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王金华,张猛,谢永亮,等.合成气纯氧高压预混湍流火焰结构研究.2013,47(10):87-90.[doi:10.7652/xjtuxb201310 015]
卢勇,裴普成.配气正时对工质移缸类非常规循环内燃机性能的影响规律.2013,47(9):41-48.[doi:10.7652/xjtuxb 201309007]
孟祥文,杨星,康婵,等.直流电场对预混CH4/O2/N2火焰传播特性影响的试验研究.2013,47(7):13-17.[doi:10.7652/xjtuxb201307003]
孙璐,刘亦夫,周磊,等.排气再循环下柴油引燃天然气发动机循环变动特性研究.2013,47(3):36-41.[doi:10.7652/xjtuxb201303007]
李东昌,汪映,孟庆斌,等.二甲醚预混比对预混压燃发动机性能影响的试验研究.2013,47(3):48-52.[doi:10.7652/xjtuxb201303009]
周竹杰,魏若男,周蓉芳,等.离子电流法在不正常点火中的实验模拟.2013,47(1):43-47.[doi:10.7652/xjtuxb201301 009]
唐安东,孟祥文,周蓉芳,等.非均匀电场对火焰传播速率的影响.2012,46(9):16-20.[doi:10.7652/xjtuxb201209004]
周蓉芳,魏若男,周竹杰,等.点火能量对天然气空气预混合气层流燃烧的影响.2012,46(7):21-25.[doi:10.7652/xjtuxb201207005]
赵伟,舒歌群,张韦,等.富氧燃烧对柴油机低温燃烧反应机理影响的数值分析.2012,46(3):69-74.[doi:10.7652/xjtuxb201203013]
刘德新,刘斌.二次喷油优化直喷汽油机冷启动排放特性的研究.2012,46(1):13-18.[doi:10.7652/xjtuxb201201003]
刘亦夫,刘兵,刘亮,等.天然气缸内直喷发动机在不同喷射和点火时刻下的排放与燃烧特性.2011,45(5):12-16.[doi:10.7652/xjtuxb201105003]
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