Measurement of Flame Front Structure of Turbulent Premixed Flames for CH<sub>4</sub>/H<sub>2</sub>/Air Mixtures

doi:10.7652/xjtuxb201311003

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Measurement of Flame Front Structure of Turbulent Premixed Flames for CH₄/H₂/Air Mixtures

更新时间：2025-07-09

- Measurement of Flame Front Structure of Turbulent Premixed Flames for CH₄/H₂/Air Mixtures
- Vol. 47, Issue 11, Pages: 14-18(2013)
- 作者机构：
  
  西安交通大学动力工程多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201311003
  CLC： TK16
- Online First：10 November 2013，
  
  Published：2013
- 稿件说明：
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Measurement of Flame Front Structure of Turbulent Premixed Flames for CH₄/H₂/Air Mixtures[J]. 2013, 47(11): 14-18. DOI: 10.7652/xjtuxb201311003.
DOI：

Measurement of Flame Front Structure of Turbulent Premixed Flames for CH₄/H₂/Air Mixtures[J]. 2013, 47(11): 14-18. DOI: 10.7652/xjtuxb201311003. DOI：

摘要

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

/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

/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。

Abstract

The measurement of the flame front structure of CH

/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

/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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references

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Measurement of Flame Front Structure of Turbulent Premixed Flames for CH4/H2/Air Mixtures

DOI：10.7652/xjtuxb201311003

摘要

Abstract

关键词

Keywords

references

Measurement of Flame Front Structure of Turbulent Premixed Flames for CH₄/H₂/Air Mixtures