Results 1 to 10 of about 114 (108)
Calculation method of spherically expanding flame propagation radius to consider ignition electrode effects [PDF]
Scientific ReportsIgnition electrodes have an immense impact on the accurate measurement of the flame propagation spherical radius. In this study, a flame-radius calculation method is designed. The method is able to eliminate effects due to the ignition electrodes.
Likang Fan +7 more
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Nihon Kikai Gakkai ronbunshu, 2023 To investigate the dynamic behavior and flame acceleration of spherically expanding hydrogen flames under the low-pressure conditions, the deflagration experiments were conducted in a closed combustion chamber. The dynamic behavior of hydrogen flames was
Toshiyuki KATSUMI +4 more
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Impact of Infinite Thin Flame Approach on the Evaluation of Flame Speed using Spherically Expanding Flames [PDF]
Energy Technology, 2017 AbstractCombustion is an important part of most current and future overall energy‐conversion systems, especially if using renewable fuels in energy‐storage concepts. Therefore, the laminar flame speed, which is a key parameter for the design of combustion systems, needs to be known for a growing multitude of different thermodynamic conditions and fuels.
Feichi Zhang +2 more
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Fuel, 2022 Abstract This study presents the performances of four commonly-used extrapolation models, including the linear stretch and linear curvature models, the nonlinear model in expansion form, and the nonlinear quasi-steady model, using synthetic data sets generated over a wide range of conditions.
Yakun Zhang +2 more
exaly +3 more sources
Proceedings of the Combustion Institute, 2021 Abstract A three-dimensional Direct Numerical Simulation (DNS) database of statistically spherical flames propagating into the mono-sized droplet-laden mixtures for an overall (i.e. gaseous + liquid phases) equivalence ratio of unity has been considered to investigate the distribution of flame topologies associated with flame self-interaction events.
Umair Ahmed, Nilanjan Chakraborty
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Energies, 2021 Since both ethanol and acetone are the main components in many alternative fuels, research on the burning characteristics of ethanol-acetone blends is important to understand the combustion phenomena of these alternative fuels.
Yangxun Liu +4 more
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Journal of Thermal Science and Technology, 2023 To investigate the effects of inert-gas addition on the dynamic behavior and propagation characteristics of spherically expanding hydrogen-air flames, the experiments of premixed combustion were performed in a closed chamber.
Toshiyuki KATSUMI +6 more
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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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Energies, 2022 In this study, 3D premixed turbulent ammonia-hydrogen flames in air were studied using DNS. Mixtures with 75%, 50% and 25% ammonia (by mole fraction in the fuel mixture) and equivalence ratios of 0.8, 1.0 and 1.2 were studied.
Nithin Mukundakumar, Rob Bastiaans
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Simulation of Spherically Expanding Turbulent Premixed Flames [PDF]
Combustion Science and Technology, 2013 Statistically spherical expanding turbulent premixed flames are computed using an unsteady Reynolds-averaged Navier–Stokes (URANS) approach. Mean reaction rate is closed using strained and unstrained flamelet models and an algebraic model. The flamelets are parametrized using the scalar dissipation rate in the strained flamelet model.
Ahmed, I, Swaminathan, N
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