Results 11 to 20 of about 6,867 (259)
AIP Advances, 2019 Experimental study on combustion instability of lean premixed swirl flame was conducted for methane-hydrogen mixtures, and the influence mechanism of hydrogen content (0%, 10%, 20%, and 40%) on the combustion instability under different acoustic ...
Mingxiao Wang, Yingjie Zhong, Kai Deng
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A Real-Time Combustion Instability Simulation with Comprehensive Thermo-Acoustic Dynamic Model
Energies, 2018 The thermo-acoustic instability in the combustion process of a gas turbine is caused by the interaction of the heat release mechanism and the pressure perturbation.
Jaeyoung Han +3 more
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Experimental Study on Dynamic Combustion Characteristics in Swirl-Stabilized Combustors
Energies, 2021 An experimental study was performed to investigate the combustion instability characteristics of swirl-stabilized combustors. A premixed gas composed of ethylene and air was burned under various flow and geometric conditions.
Donghyun Hwang, Kyubok Ahn
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Numerical Investigation of the Effects of Chemical Species and Chemical Kinetic Mechanisms on Laminar Premixed Flame-Acoustic Wave Interactions [PDF]
Journal of Applied Fluid Mechanics, 2023 Numerical simulation of interactions between acoustic waves and flames is of utmost importance in thermo-acoustic instability research. In this study, interactions between a one-dimensional Methane-Air laminar premixed flame and acoustic waves with a ...
E. Salimi Babokani +2 more
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Instabilities, Pattern Formation, and Turbulence in Flames [PDF]
Annual Review of Fluid Mechanics, 1983 l.1 Premixed flames It is well known that the rate of a chemical reaction (W) in a gaseous mixture is an increasing function of tempera ture; usually W ex.p( E / RT), where E is a constant, specific to the reaction and called its activation energy, and R is the universal gas constant.
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NONLINEAR THEORY OF FLAME FRONT INSTABILITY
Combustion Science and Technology, 2002 Nonlinear non-stationary equation describing evolution of weakly curved premixed flames with arbitrary gas expansion, subject to the Landau-Darrieus instability, is derived. The new equation respects all the conservation laws to be satisfied across the flame front, as well as correctly takes into account influence of vorticity, generated in the flame ...
Kazakov, Kirill A., Liberman, Michael A.
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Journal of Thermal Science and Technology, 2013 The effects of unburned-gas temperature and heat loss on the diffusive-thermal instability of premixed flames were studied by two-dimensional unsteady calculations of reactive flows, based on the diffusive-thermal model equation, under the conditions of ...
Thwe Thwe Aung, Satoshi KADOWAKI
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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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Improvement of Municipal Solid Waste Syngas Premixed Flame with Cellular Structure on a Flat Burner
Energies, 2023 This research was conducted to study the flame instability of syngas derived from raw municipal solid waste (MSW) and its potential as a natural gas (NG) replacement in power generation. MSW syngas is a mixture of various components such as methane (CH4),
Amornrat Kaewpradap +4 more
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Journal of Fluid Science and Technology, 2008 The effects of the activation energy on the intrinsic instability of adiabatic and non-adiabatic premixed flames were studied by two-dimensional unsteady calculations of reactive flows based on the compressible Navier-Stokes equation.
Amornrat KAEWPRADAP, Satoshi KADOWAKI
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