相对旋向对纯氢双旋流燃烧动态特性的影响

谷午; 薛然然; 郑洪涛; 刘潇

doi:10.13224/j.cnki.jasp.20260295

相对旋向对纯氢双旋流燃烧动态特性的影响

doi: 10.13224/j.cnki.jasp.20260295

谷午^1,,
薛然然²,
郑洪涛¹,
刘潇^1,*, ,

1.
哈尔滨工程大学动力与能源工程学院，哈尔滨 150001
2.
中国航空发动机研究院基础与应用研究中心，北京 100191

基金项目: 国家自然科学基金（52576109）；哈尔滨市制造业科技创新人才项目（2023CXRCCG005）

详细信息

作者简介:
谷午（1996-），男，博士生，主要从事氢气湍流燃烧及燃烧不稳定性研究。E-mail：13889330948@163.com

通讯作者:
刘潇（1988-），男，副教授，博士，主要从事燃气轮机低排放燃烧与燃烧不稳定性研究。E-mail：liuxiao_heu@163.com

中图分类号: V231.2
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出版历程
- 收稿日期: 2026-08-14
- 网络出版日期: 2026-10-19

Effects of relative swirl direction on combustion dynamics of a pure-hydrogen dual-swirl combustor

Gu Wu^1
,,
Xue Ranran²,
Zheng Hongtao¹,
Liu Xiao^{1,*
, ,}

1.
College of Power and Energy Engineering，Harbin Engineering University，Harbin 150001，China
2.
Basic and Applied Research Center，Aero Engine Academy of China，Beijing 100191，China

摘要

摘要:
为明确相对旋向对纯氢双旋流燃烧动态特性的影响，在喷孔、流道尺寸和名义旋流数幅值相同条件下，对反向旋流（CR）与同向旋流（CO）开展常压试验。空气体积流量为2.20、3.30、4.40×10⁻³ m³/s，当量比为0.05～1.00，共120个工况。采用动态压力与高速OH*化学发光测量，分析压力幅频特征和火焰投影。结果表明：两构型的压力脉动随当量比非单调变化。CR高响应窗口较窄，最大压力均方根为0.28 kPa；CO在中高流量下形成较宽高响应区，最大值为0.55 kPa。在最大空气流量且当量比0.80～1.00时，CO为CR的2.6～3.0倍。主频为0.70～1.14 kHz；CO在中高流量及较高当量比下呈连续窄带谱脊，CR低流量强响应的宽带与多频特征更明显。投影面积在当量比0.20～0.50时快速增至（2.5～2.8）×10³ mm²后趋于饱和。CR较早形成高窄包络，CO在较宽范围保持低宽杯形结构。相对旋向改变了压力响应窗口、频谱组织与火焰投影形态。
- 纯氢燃烧 /
- 双旋流燃烧室 /
- 相对旋向 /
- 燃烧动态 /
- OH*化学发光 /
- 压力脉动
Abstract:
To clarify the effects of relative swirl direction on the pure-hydrogen dual-swirl combustion dynamics, atmospheric tests were conducted to compare counter-rotating (CR) and co-rotating (CO) configurations with identical fuel orifices, flow passages, and nominal swirl-number magnitudes. The air volume flow rates were 2.20, 3.30, and 4.40×10⁻³ m³/s, and the equivalence ratios ranged from 0.05 to 1.00, covering 120 conditions in total. Dynamic pressure and high-speed OH* chemiluminescence measurements were used to characterize the pressure amplitude-frequency and flame projection morphology. Pressure fluctuations varied non-monotonically with equivalence ratio. CR exhibited narrower high-response regions with a maximum pressure root mean square of 0.28 kPa; CO produced broader high-response regions at medium and high flow rates, reaching 0.55 kPa. At the highest flow rate and equivalence ratios of 0.80 to 1.00, the CO value was 2.6 to 3.0 times that of CR. The dominant frequencies ranged from 0.70 to 1.14 kHz. CO exhibited continuous narrowband spectral ridges at medium-to-high flow rates and high equivalence ratios, whereas CR showed stronger broadband and multifrequency features during strong low-flow responses. The projected area increased rapidly to (2.5 to 2.8)×10³ mm² at equivalence ratios of 0.20 to 0.50 and then approached saturation. CR formed a tall, narrow envelope earlier, while CO retained a low, wide cup-shaped structure over a broader range. The relative swirl direction changed the pressure-response windows, spectral organization, and projected flame morphology.
- pure-hydrogen combustion /
- dual-swirl combustor /
- relative swirl direction /
- combustion dynamics /
- OH* chemiluminescence /
- pressure fluctuation

HTML

图 1 常压受限纯氢燃烧试验系统示意图（单位：mm）

Figure 1. Schematic of the atmospheric confined pure-hydrogen combustion facility （unit：mm）

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图 2 纯氢同轴双旋流燃烧器结构及CR、CO构型

Figure 2. Pure-hydrogen coaxial dual-swirl combustor and CR/CO configurations

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图 4 CR与CO构型主导压力频率随当量比的变化

Figure 4. Dominant pressure frequency versus equivalence ratio for the CR and CO configurations

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图 6 CR与CO构型时间平均OH*化学发光投影（每组上行为CR、下行为CO；当量比由0.10增至1.00，间隔0.10；色标为各工况图像独立归一化的OH*发光强度IOH*/Imax）

Figure 6. Time-averaged OH* chemiluminescence projections for the CR and CO configurations （CR in the upper row and CO in the lower row of each group; equivalence ratio from 0.10 to 1.00 at an interval of 0.10; the color bar denotes OH* intensity independently normalized within each condition, IOH*/Imax）

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图 3 不同空气体积流量下CR与CO构型压力脉动方均根值随当量比的变化

Figure 3. Pressure-fluctuation RMS versus equivalence ratio for the CR and CO configurations

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图 5 CR与CO构型压力功率谱密度随当量比的演化

Figure 5. Evolution of pressure power spectral density with equivalence ratio

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图 7 CR与CO构型OH*发光投影面积随当量比的变化

Figure 7. Projected OH*-emitting area versus equivalence ratio for the CR and CO configurations

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表 1 CR与CO双旋流燃烧器主要对比参数

Table 1. Main comparative parameters of the CR and CO dual-swirl combustors

参数	反向旋流（CR）	同向旋流（CO）
燃料喷孔	28×ϕ0.6 mm：1个轴向孔、12个倾斜孔、15个径向孔	与CR相同
内旋流器	8个叶片，名义几何旋流数0.47	与CR相同
外旋流器	24个叶片，名义几何旋流数幅值0.90	标量尺寸与CR相同，叶片手性镜像
相对旋向	内、外旋流方向相反	内、外旋流方向相同
出口	直径为22.6397 mm，面积为402.56 mm²	与CR相同

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表 2 试验工况与采集参数

Table 2. Experimental conditions and acquisition parameters

参数/单位	数值
环境压力p_a/kPa	102～103
环境与入口温度T/K	300
空气体积流量q_V,a/10⁻³ （m³/s）	2.20，3.30，4.40
全局当量比φ	0.05～1.00，增量0.05
压力采样频率f_s/kHz	20
压力采集时长t/s	10
高速相机采样频率f_cam/kHz	10
曝光时间t_exp/μs	89
每个工况图像数N_img	5000

下载: 导出CSV

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