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This article is cited in 7 scientific papers (total in 7 papers)
Impacts of rectangular obstacle lengths on premixed methane-air flame propagation in a closed tube
G. Luoa, J.-Q. Tua, Y.-L. Qiana, K.-K. Jina, T.-J. Yeb, Y. Baic, S. Gaoa a Zhejiang College of Security Technology, Zhejiang 325016, China
b Wenzhou Vocational College of Science and Technology, Zhejiang 325006, China
c Oujiang College, Wenzhou University, Zhejiang 325035, China
Abstract:
To investigate the mechanism of the flame-vortex interaction induced by an obstacle, a numerical research of premixed methane-air flame dynamics in an obstructed chamber is described. Numerical simulations are performed with the OpenFOAM open-source CFD code. The simulation images show that the flame propagation process can be divided into four typical stages. A series of instabilities are captured in the simulation during flame propagation. More importantly, the numerical results demonstrate that a longer obstacle allows a sufficient accelerating time, which can give rise to a higher explosion overpressure and faster flame tip speed.
Keywords:
methane-air flame, OpenFOAM, obstacle length, flame-vortex interaction, flame acceleration.
Received: 11.01.2021 Revised: 30.04.2021 Accepted: 09.06.2021
Citation:
G. Luo, J.-Q. Tu, Y.-L. Qian, K.-K. Jin, T.-J. Ye, Y. Bai, S. Gao, “Impacts of rectangular obstacle lengths on premixed methane-air flame propagation in a closed tube”, Fizika Goreniya i Vzryva, 58:1 (2022), 13–26; Combustion, Explosion and Shock Waves, 58:1 (2022), 10–21
Linking options:
https://www.mathnet.ru/eng/fgv812 https://www.mathnet.ru/eng/fgv/v58/i1/p13
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