Multi-hole obstacles’ effects on premixed flame’s propagation

CHENG Fangming; CHANG Zhuchuan; SHI He; GAO Tongtong; LUO Zhenmin; GE Tianjiao

doi:10.11883/bzycj-2019-0480

Volume 40 Issue 8

Aug. 2020

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Article Navigation > Explosion And Shock Waves > 2020 > 40(8): 082103

CHENG Fangming, CHANG Zhuchuan, SHI He, GAO Tongtong, LUO Zhenmin, GE Tianjiao. Multi-hole obstacles’ effects on premixed flame’s propagation[J]. Explosion And Shock Waves, 2020, 40(8): 082103. doi: 10.11883/bzycj-2019-0480

Citation:

CHENG Fangming, CHANG Zhuchuan, SHI He, GAO Tongtong, LUO Zhenmin, GE Tianjiao. Multi-hole obstacles’ effects on premixed flame’s propagation[J]. Explosion And Shock Waves, 2020, 40(8): 082103. doi: 10.11883/bzycj-2019-0480

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Multi-hole obstacles’ effects on premixed flame’s propagation

doi: 10.11883/bzycj-2019-0480

1.
School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China
2.
Xi’an Institute of Space Radio Technology, Xi’an 710100, Shaanxi, China

Received Date: 2019-12-25
Rev Recd Date: 2020-02-16

Available Online: 2020-07-25

Publish Date: 2020-08-01

Abstract

Abstract

Taking methane as the representative gas, the effect of setting multi-hole obstacle in semi-enclosed pipe on the flame propagation of flammable gas explosion was studied, and the experiment was reproduced based on the large eddy simulation (LES), the shape, position and speed of flame propagation were compared in the experiment and simulation, the flow field and area change of the flame before and after the obstacle were analyze and then the method of measuring the refractory rate of the flame is proposed. The results show that the LES results are in good consistency with the experimental results. Flame propagation has gone through four stages in the duct, followed by the layer flow bubbles rapid expansion stage, the flame pulsation reflux stage, the turbulent flame rapid development stage, the flame deceleration stabilization stage, in which the speed of the flame fluctuates. After the flame has passed through the multi-hole obstacles, the propagation speed suddenly rises to a peak value, which is 58.7% higher than the maximum speed in front of the obstacle. The discharge vent and ignition are at the same end in the duct, when the flame is near the obstacle, which is effected by the top of pipe and obstacle significantly, and the speed would be negative and the flame will flow back. Obstacles are the direct cause of the broken layer flow bubbles and the increase of area fold rate, the maximum flame fold rate is 44.8% after flame passed the obstacle, which is increased by 36.72%.
- methane explosion,
- large eddy simulation,
- flame front,
- multi-hole obstacle,
- flame folding rate

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References

[1]	LI G Q, DU Y, QI S, et al. Explosions of gasoline-air mixtures in a closed pipe containing a T-shaped branch structure [J]. Journal of Loss Prevention in the Process Industries, 2016, 43: 529–536. DOI: 10.1016/j.jlp.2016.07.022.
[2]	杜扬, 李国庆, 吴松林, 等. T型分支管道对油气爆炸强度的影响 [J]. 爆炸与冲击, 2015, 35(5): 729–734. DOI: 10.11883/1001-1455(2015)05-0729-06. DU Y, LI G Q, WU S L, et al. Effects of a T-shaped branch pipe on overpressure of gasoline-air mixture explosion [J]. Explosion and Shock Waves, 2015, 35(5): 729–734. DOI: 10.11883/1001-1455(2015)05-0729-06.
[3]	JOHANSEN C, CICCARELLI G. Modeling the initial flame acceleration in an obstructed channel using large eddy simulation [J]. Journal of Loss Prevention in the Process Industries, 2013, 26(4): 571–585. DOI: 10.1016/j.jlp.2012.12.005.
[4]	王公忠, 张建华, 李登科, 等. 障碍物对预混火焰特性影响的大涡数值模拟 [J]. 爆炸与冲击, 2017, 37(1): 68–76. DOI: 10.11883/1001-1455(2017)01-0068-09. WANG G Z, ZHANG J H, LI D K, et al. Large eddy simulation of impacted obstacles’ effects on premixed flame’s characteristics [J]. Explosion and Shock Waves, 2017, 37(1): 68–76. DOI: 10.11883/1001-1455(2017)01-0068-09.
[5]	WANG C, HUANG F L, ADDAI E K, et al. Effect of concentration and obstacles on flame velocity and overpressure of methane-air mixture [J]. Journal of Loss Prevention in the Process Industries, 2016, 43: 302–310. DOI: 10.1016/j.jlp.2016.05.021.
[6]	MASRI A R, IBRAHIM S S, NEHZAT N, et al. Experimental study of premixed flame propagation over various solid obstructions [J]. Experimental Thermal and Fluid Science, 2000, 21(1−3): 109–116.
[7]	杜扬, 李国庆, 王世茂, 等. 障碍物数量对油气泄压爆炸特性的影响 [J]. 化工学报, 2017, 68(7): 2946–2955. DU Y, LI G Q, WANG S M, et al. Effects of obstacle number on characteristics of vented gasoline-air mixture explosions [J]. CIESC Journal, 2017, 68(7): 2946–2955.
[8]	CICCARELLI G, FOWLER C J, BARDON M. Effect of obstacle size and spacing on the initial stage of flame acceleration in a rough tube [J]. Shock Waves, 2005, 14(3): 161–166. DOI: 10.1007/s00193-005-0259-4.
[9]	余明高, 阳旭峰, 郑凯, 等. 障碍物对甲烷/氢气爆炸特性的影响 [J]. 爆炸与冲击, 2018, 38(1): 19–27. DOI: 10.11883/bzycj-2017-0172. YU M G, YANG X F, ZHENG K, et al. Effect of obstacles on explosion characteristics of methane/hydrogen [J]. Explosion and Shock Waves, 2018, 38(1): 19–27. DOI: 10.11883/bzycj-2017-0172.
[10]	WAN S J, YU M G, ZHENG K, et al. Effect of side vent size on a methane/air explosion in an end-vented duct containing an obstacle [J]. Experimental Thermal and Fluid Science, 2019, 101: 141–150. DOI: 10.1016/j.expthermflusci.2018.10.004.
[11]	孙明波, 汪洪波, 梁剑寒, 等. 复杂湍流流动的混合RANS/LES方法研究 [J]. 航空计算技术, 2011, 41(1): 24–29, 33. DOI: 10.3969/j.issn.1671-654X.2011.01.006. SUN M B, WANG H B, LIANG J H, et al. Evaluation of hybrid RANS/LES methodologies for complex turbulent flow simulations [J]. Aeronautical Computing Technique, 2011, 41(1): 24–29, 33. DOI: 10.3969/j.issn.1671-654X.2011.01.006.
[12]	WEN X P, DING H Q, SU T F, et al. Effects of obstacle angle on methane-air deflagration characteristics in a semi-confined chamber [J]. Journal of Loss Prevention in the Process Industries, 2017, 45: 210–216. DOI: 10.1016/j.jlp.2017.01.007.
[13]	WEN X P, YU M G, LIU Z C, et al. Large eddy simulation of methane-air deflagration in an obstructed chamber using different combustion models [J]. Journal of Loss Prevention in the Process Industries, 2012, 25(4): 730–738. DOI: 10.1016/j.jlp.2012.04.008.
[14]	LI G Q, DU Y, WANG S M, et al. Large eddy simulation and experimental study on vented gasoline-air mixture explosions in a semi-confined obstructed pipe [J]. Journal of Hazardous Materials, 2017, 339: 131–142. DOI: 10.1016/j.jhazmat.2017.06.018.
[15]	CHEN P, LI Y C, HUANG F J, et al. Experimental and LES investigation of premixed methane/air flame propagating in a chamber for three obstacle BR configurations [J]. Journal of Loss Prevention in the Process Industries, 2016, 41: 48–54. DOI: 10.1016/j.jlp.2016.02.020.
[16]	LESIEURM, MÉTAIS O, COMTE P. Large-eddy simulations of turbulence [M]. Cambridge: Cambridge University Press, 2005: 5−10.
[17]	AUNG K T, HASSAN M I, FAETH G M. Flame stretch interactions of laminar premixed hydrogen/air flames at normal temperature and pressure [J]. Combustion and Flame, 1997, 109(1/2): 1–24.
[18]	BUTLER T D, O'ROURKE P J. A numerical method for two-dimensional unsteady reacting flows [J]. Symposium (International) on Combustion, 1977, 16(1): 1503. DOI: 10.1016/S0082-0784(77)80432-3.
[19]	XIAO H H, SHEN X B, SUN J H. Experimental study and three-dimensional simulation of premixed hydrogen/air flame propagation in a closed duct [J]. International Journal of Hydrogen Energy, 2012, 37(15): 11466–11473. DOI: 10.1016/j.ijhydene.2012.05.006.
[20]	YU M G, ZHENG K, CHU T X. Gas explosion flame propagation over various hollow-square obstacles [J]. Journal of Natural Gas Science and Engineering, 2016, 30: 221–227. DOI: 10.1016/j.jngse.2016.02.009.
[21]	ZHENG K, YU M G, ZHENG L G, et al. Effects of hydrogen addition on methane-air deflagration in obstructed chamber [J]. Experimental Thermal and Fluid Science, 2017, 80: 270–280. DOI: 10.1016/j.expthermflusci.2016.08.025.
[22]	陈鹏, 李艳超, 黄福军, 等. 方孔障碍物对瓦斯火焰传播影响的实验与大涡模拟 [J]. 爆炸与冲击, 2017, 37(1): 21–26. DOI: 10.11883/1001-1455(2017)01-0021-06. CHEN P, LI Y C, HUANG F J, et al. LES approach to premixed methane/air flame propagating in the closed duct with a square–hole obstacle [J]. Explosion and Shock Waves, 2017, 37(1): 21–26. DOI: 10.11883/1001-1455(2017)01-0021-06.

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13.	程方明，常助川，高彤彤，纪鹏飞，罗振敏. 不同位置多孔障碍物对预混火焰传播的影响. 中国安全科学学报. 2020(11): 114-120 .