Experimental and numerical investigation of premixed flame propagation with distorted tulip shape in a closed duct

Xiao, Huahua; Makarov, Dmitriy; Sun, Jinhua; Molkov, Vladimir

doi:10.1016/j.combustflame.2011.12.003

Cited by 197 publications

(79 citation statements)

References 46 publications

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“…The detailed experimental set-up and methods can be found elsewhere [14,22], and only brief outlines will be given here. The combustion chamber is a rectangular closed duct of strong curvature which is shown in Fig.…”

Section: Experimental Instrumentation and Proceduresmentioning

confidence: 99%

“…The theory can correctly predict the characteristic parameters of flame shape evolution and the flame tip acceleration. Under proper conditions, the tulip flame can further develop into distorted tulip and cellular fronts [14,15,24]. Several possible explanations have been put forward for the tulip formation, i.e.…”

Section: Introductionmentioning

confidence: 98%

“…Generally, a premixed flame is unstable due to the effects of various hydrodynamic and combustion instabilities, e.g., Darrieus-Landau (DL), thermal-diffusive and Taylor instabilities [4,[13][14][15][16][17]. Ellis [18] conducted experiments of premixed flames propagating in straight tubes closed at both ends.…”

Section: Introductionmentioning

confidence: 99%

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An investigation of premixed flame propagation in a closed combustion duct with a 90° bend

Xiao

Duan

et al. 2014

Applied Energy

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Section: Experimental Instrumentation and Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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An investigation of premixed flame propagation in a closed combustion duct with a 90° bend

Xiao

Duan

et al. 2014

Applied Energy

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“…First, a validation based on a lab-scale experiment of which the complete geometric details are given in Liu et al (2016). In addition, to the author's knowledge, there is rarely available labscale experiments measuring flame front position of hydrogen-air mixtures and the understanding of flame front propagation is necessary for the establishment of numerical models (Xiao et al, 2012). Second, the validation is implemented in experiments of CTF facility.…”

Section: Model Validationmentioning

confidence: 99%

Numerical Simulation of Hydrogen Combustion: Global Reaction Model and Validation

Zhang

Liu

2017

Front. Energy Res.

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Due to the complexity of modeling the combustion process in nuclear power plants, the global mechanisms are preferred for numerical simulation. To quickly perform the highly resolved simulations with limited processing resources of large-scale hydrogen combustion, a method based on thermal theory was developed to obtain kinetic parameters of global reaction mechanism of hydrogen-air combustion in a wide range. The calculated kinetic parameters at lower hydrogen concentration (C hydrogen < 20%) were validated against the results obtained from experimental measurements in a container and combustion test facility. In addition, the numerical data by the global mechanism (C hydrogen > 20%) were compared with the results by detailed mechanism. Good agreement between the model prediction and the experimental data was achieved, and the comparison between simulation results by the detailed mechanism and the global reaction mechanism show that the present calculated global mechanism has excellent predictable capabilities for a wide range of hydrogen-air mixtures.

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“…Generally due to the hydrodynamic instabilities the flame propagates as a curved front rather than maintaining a stable planar front [12]. Clanet and Searby [13] first explained the acceleration mechanism at the early stages of burning in tubes, and the idea was recently developed by Bychkov's theory [14].…”

Section: Introductionmentioning

confidence: 99%

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors

Chen

Zhang

2012

Energies

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Abstract:To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame structure transition. The results show that a flame front structure transition occurs, followed by a flame accelerating propagation process. The laminar to turbulence transition was the essential cause of the flame structure changes. The laminar flame propagation behavior was influenced mainly by gas expansion and fore-compressive wave effect, while the turbulent flame speed mostly depended on turbulence intensity, which also played an important role in peak value of the explosive pressure and flame speed. On the condition that the laminar-turbulent transition was easier to form, the conclusion was drawn that, the lowest CH 4 concentration for maximum overpressure can be obtained, which was the essential reason why the ideal explosive concentration differs under different test conditions.

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Experimental and numerical investigation of premixed flame propagation with distorted tulip shape in a closed duct

Cited by 197 publications

References 46 publications

An investigation of premixed flame propagation in a closed combustion duct with a 90° bend

An investigation of premixed flame propagation in a closed combustion duct with a 90° bend

Numerical Simulation of Hydrogen Combustion: Global Reaction Model and Validation

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors

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