Results 21 to 30 of about 5,196 (262)
Fluids, 2021 This investigation evaluates the propagation of premixed flames in narrow channels with isothermal walls. The study is based on the numerical solution of the set of fully-compressible, reacting flow equations that includes viscosity, diffusion, thermal ...
Orlando J. Ugarte +1 more
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Fluids, 2020 Within the Boussinesq approximation, an elementary model for the deflagration-to-detonation transition triggered by self-acceleration of an expanding flame is formulated and explored.
Leonid Kagan, Gregory Sivashinsky
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Journal of Thermal Science and Technology, 2021 Utilizing efficiently and securely hydrogen as clean energy source, it is required not only to analyze the experimental data under a certain condition but also to create the mathematical model for the prediction of flame propagation velocity under ...
Toshiyuki KATSUMI +8 more
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Science Progress, 2020 The pipeline length exerts great influence on flame propagation characteristics, Realizable k − ε model and Premixed combustion model were used to study the influence of pipe length on propane-air explosion flame in open-ended and close-ended pipes ...
Xue Li +5 more
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Numerical analysis of flow fields generated by accelerating flames [PDF]
17th Aerospace Sciences Meeting, 1979 A numerical technique is presented for the analysis of nonsteady flowfields generated by accelerating flames in gaseous media. The problem is formulated in Eulerian coordinates and the solution is based on the extension of the floating shock-fitting technique to all the discontinuities and their interactions occurring in the flowfield.
Kurylo, J., Dwyer, H.A., Oppenheim, A.K.
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Influence of hydrodynamic processes on apparent flame velocity in accidental explosions [PDF]
E3S Web of Conferences, 2023 The main impact factor of an accidental explosion is explosive pressure, the numerical value of which is determined by the magnitude of the apparent flame velocity during explosive combustion of an explosive mixture.
Komarov Aleksandr +2 more
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Fluids, 2020 A recent predictive scenario of premixed flame propagation in unobstructed passages is extended to account for obstructions that can be encountered in facilities dealing with explosive materials such as in coalmines.
Furkan Kodakoglu +3 more
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Engineering Applications of Computational Fluid Mechanics, 2021 This work evaluates the capabilities of Large Eddy Simulation with perfectly stirred reactor (PSR) assumption and detailed chemistry to predict unsteady, premixed, hydrogen combustion sequences.
F. Nicolás-Pérez +5 more
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Effect of Obstacle Length Variation on Hydrogen Deflagration in a Confined Space Based on Large Eddy Simulations [PDF]
Journal of Applied Fluid Mechanics, 2023 In the field of hydrogen safety and combustion, the effect of obstacles on hydrogen deflagration is a topic of general interest to scholars. In previous studies, scholars usually used uniform obstacles under various operating conditions and obtained ...
B. Ai, J. Gao, B. Hao, B. Guo, J. Liang
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Effect of surface friction on ultrafast flame acceleration in obstructed cylindrical pipes
AIP Advances, 2019 The Bychkov model of ultrafast flame acceleration in obstructed tubes [Valiev et al., “Flame Acceleration in Channels with Obstacles in the Deflagration-to-Detonation Transition,” Combust.
Abdulafeez Adebiyi +3 more
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