Results 31 to 40 of about 119,191 (210)
FireThe fractional change in the reaction progress variable gradient depends on the flow normal straining within the flame and also upon the corresponding normal gradients of the reaction rate and its molecular diffusion transport. The statistical behaviours
Nilanjan Chakraborty, Cesar Dopazo
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Case Studies in Thermal Engineering, 2015 Implementation of the adiabatic steady PPDF flamelet model involves a lot of variations including different scalar dissipation rate calculation methods and different mass diffusion models of the opposed jet flame.
Qiong Li +3 more
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Energies, 2021 The length and pattern of air–fuel mixing plays a significant role in the uniformity, flame temperature, and emission characteristics, which can lead to a superior product quality in a non-oxidizing direct fired burner for a cold-rolled steel plate ...
Cheolwoo Lee, Insu Kim, Junggoo Hong
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Flame speed in diffusion dominated premixed flames
Combustion Theory and Modelling, 2022 Development of a premixed flame theory that includes the effects of flame stretch and curvature has been at the forefront of combustion research. Diffusion dominated flames such as highly curved flame balls present a challenging flame structure that has not been included in current flame stretch theory so far.
Faizan Habib Vance +2 more
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LIFTED LAMINAR JET DIFFUSION FLAMES [PDF]
Combustion Science and Technology, 2005 This paper addresses the numerical description of lifted flames in axisymmetric laminar coflow jets. The analysis considers moderately large values of the Reynolds number, when the boundary-layer approximation can be used to describe the slender mixing region that extends between the jet exit and the flame, providing the profiles of velocity and ...
Liñán Martínez, Amable +3 more
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, 2017 Recent studies within the diffusive-thermal (constant-density) approximation have shown that, for premixed flames freely propagating in narrow adiabatic channels, the instabilities induced by differential diffusion may result in non-symmetric solutions ...
Fernandez-Galisteo, Daniel +3 more
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Opposed flow diffusion flame extensions [PDF]
Symposium (International) on Combustion, 1981 The Opposed Flow Diffusion Flame (OFDF) apparatus has been used for estimating the thermochemical properties of materials related to fire safety and for diffusion flame structure studies. Here the extension of the flame beyond the pyrolyzing fuel surface and the excess pyrolyzate are predicted.
Kinoshita, C.M. +2 more
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On Classical Solutions for A Kuramoto–Sinelshchikov–Velarde-Type Equation
Algorithms, 2020 The Kuramoto–Sinelshchikov–Velarde equation describes the evolution of a phase turbulence in reaction-diffusion systems or the evolution of the plane flame propagation, taking into account the combined influence of diffusion and thermal conduction of the
Giuseppe Maria Coclite, Lorenzo di Ruvo
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Flame Structure and Flame–Flow Interaction in a Centrally Staged Burner Featuring a Diffusion Pilot
AerospaceThe pilot flame serves as the primary anchor for global flame stabilization in a centrally staged combustor. In engineering practice, it typically operates in the diffusion mode.
Weishu Mo +4 more
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Fluid-mechanical structure of methane-air and propane-air turbulent premixed flames
Nihon Kikai Gakkai ronbunshu, 2015 The flow fields of lean and rich propane-air and methane-air turbulent premixed flames of the identical conditions of laminar burning velocity and characteristic of turbulence have been closely examined by using a three-color six-beam LDV system.
Yasuko YOSHIDA +2 more
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