Results 21 to 30 of about 186,702 (237)

Propagation of weakly stretched premixed spherical spray flames in localized homogeneous and heterogeneous reactants [PDF]

open access: yes, 2020
Propagation of weakly stretched spherical flames in partially pre-vaporized fuel sprays is theoretically investigated in this work. A general theory is developed to describe flame propagation speed, flame temperature, droplet evaporation onset and completion locations.
arxiv   +1 more source

A fast, low-memory, and stable algorithm for implementing multicomponent transport in direct numerical simulations [PDF]

open access: yes, 2019
Implementing multicomponent diffusion models in reacting-flow simulations is computationally expensive due to the challenges involved in calculating diffusion coefficients.
Beardsell, Guillaume   +4 more
core   +2 more sources

Oxygen combustion of CH4-CO2 mixture in a small-scale counterflow burner

open access: yesJournal of Thermal Science and Technology, 2018
Oxygen combustion of CH4-CO2 mixture in a small-scale counterflow burner was studied. A diffusion flame was stabilized in the gap between opposed ports ejecting fuel and oxygen gases, and its thickness which depended on the gap distance between burner ...
Satoshi KADOWAKI   +5 more
doaj   +1 more source

Effects of heat release on triple flames [PDF]

open access: yes, 1995
Heat release effects on laminar flame propagation in partially premixed flows are studied. Data for analysis are obtained from direct numerical simulations of a laminar mixing layer with a uniformly approaching velocity field.
Liñán Martínez, Amable   +2 more
core   +2 more sources

Characteristics of biogas-oxygen micro counterflow diffusion flames

open access: yesNihon Kikai Gakkai ronbunshu, 2015
The characteristics of biogas-oxygen diffusion flames were experimentally investigated using small counterflow burners, where the apparent equivalence ratio was set to unity.
Satoshi KADOWAKI   +3 more
doaj   +1 more source

The Effect of Strain Rate on Diffusion Flames [PDF]

open access: yes, 1975
Several steady state and time-dependent solutions to the compressible conservation laws describing direct one-step near-equilibrium irreversible exothermic burning of initially unmixed gaseous reactants, with Lewis-Semenov number unity, are presented ...
Carrier, G. F.   +2 more
core   +1 more source

Numerical simulation of the effect of diluents on NOx formation in methane and methyl formate fuels in counter flow diffusion flame

open access: yesAIMS Environmental Science, 2020
The increasing global demand for energy, the need to reduce green house gasses, and the depletion of fossil fuel resources have led for the need for renewable fuel sources such as biodiesel fuels.
Patrick Wanjiru   +4 more
doaj   +1 more source

Dynamical Behaviors of Small-scale Buoyant Diffusion Flame Oscillators in Externally Swirling Flows [PDF]

open access: yesarXiv, 2023
Small-scale flickering buoyant diffusion flames in externally swirling flows were computationally investigated with a particular interest in identifying and characterizing various distinct dynamical behaviors of the flame oscillators under different swirling flow conditions. By varying the external swirl, six distinct flame dynamical modes, such as the
arxiv  

On the dynamics of the collapse of a diffusion-flame hole [PDF]

open access: yes, 2003
The collapse dynamics of a diffusion-flame hole in the presence of a counterflow are studied. We construct unsteady solutions of the one-dimensional edge-flame model of Buckmaster (1996), in which heat and mass transverse losses are algebraic.
Pantano, C., Pullin, D. I.
core   +2 more sources

Study on flame stability in oxygen-enriched ammonia/N2/O2 laminar diffusion flame

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Ammonia is regarded as one of the alternative fuels because CO2 is not emitted during the combustion process of ammonia. The physical properties of ammonia are suitable for transportation and storage as a “hydrogen carrier”.
Yohei ISHIKAWA   +6 more
doaj   +1 more source

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