LES/PDF Modeling of Turbulent Premixed Flames with Locally Enhanced Mixing by Reaction
Sign Up to like & getrecommendations! Published in 2017 at "Flow, Turbulence and Combustion"
DOI: 10.1007/s10494-017-9831-0
Abstract: Large-eddy simulations (LES) combined with the transported probability density function (PDF) method are carried out for two turbulent piloted premixed methane-air jet flames (flame F1 and flame F3) to assess the capability of LES/PDF for… read more here.
Keywords: flame; filter scale; turbulent premixed; model ... See more keywords
Stabilization of a turbulent premixed flame by a plasma filament
Sign Up to like & getrecommendations! Published in 2019 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2019.07.002
Abstract: Abstract The mechanism of stabilizing a turbulent premixed methane-air flame using warm filamentary plasma is investigated by using laser diagnostics. First, stabilization of a turbulent jet flame is demonstrated in a setup using a pin-to-pin… read more here.
Keywords: propagation; flame; turbulent premixed; stabilization turbulent ... See more keywords
Physical effects of water droplets interacting with turbulent premixed flames: A Direct Numerical Simulation analysis
Sign Up to like & getrecommendations! Published in 2021 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2021.111404
Abstract: Abstract Three-dimensional carrier-phase Direct Numerical Simulations (DNS), combined with a Lagrangian representation of individual droplets, have been employed in this parametric study to examine the physical effects of liquid water mist interacting with laminar and… read more here.
Keywords: water; direct numerical; physical effects; water droplets ... See more keywords
A revisit to the validity of flamelet assumptions in turbulent premixed combustion and implications for future research
Sign Up to like & getrecommendations! Published in 2021 at "Combustion and Flame"
DOI: 10.1016/j.combustflame.2021.111635
Abstract: Abstract The flamelet assumption has been widely used for analysis and modeling of turbulent premixed flames over the past decades. Despite its popularity, validity of this assumption has been challenged originally by Borghi [1] in… read more here.
Keywords: premixed flames; research; assumption; validity ... See more keywords
AN EXPERIMENTAL STUDY ON TURBULENT PREMIXED EXPANDING FLAMES USING SIMULTANEOUSLY SCHLIEREN AND TOMOGRAPHY TECHNIQUES
Sign Up to like & getrecommendations! Published in 2017 at "Experimental Thermal and Fluid Science"
DOI: 10.1016/j.expthermflusci.2017.12.018
Abstract: Abstract As in most of industrial cases, in Spark-Ignition (SI) engines, the expansion of premixed flames is strongly affected by turbulence flow fields. However, as the flame radius and curvature are non-negligible during the combustion… read more here.
Keywords: experimental study; study turbulent; turbulent premixed; using simultaneously ... See more keywords
Evolution of local flame displacement speeds in turbulence
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2019.896
Abstract: In this study, we assess the veracity of models for density-weighted local flame displacement speed of turbulent premixed flames. It will be shown that a combination of two models, one for the weakly stretched laminar… read more here.
Keywords: flame; local flame; turbulent premixed; flame displacement ... See more keywords
Reynolds number scaling of burning rates in spherical turbulent premixed flames
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Fluid Mechanics"
DOI: 10.1017/jfm.2020.784
Abstract: Abstract In the flamelet regime of turbulent premixed combustion the enhancement in the burning rates originates primarily from surface wrinkling. In this work we investigate the Reynolds number dependence of burning rates of spherical turbulent… read more here.
Keywords: burning rates; spherical turbulent; reynolds number; surface ... See more keywords
Network structure of turbulent premixed flames.
Sign Up to like & getrecommendations! Published in 2017 at "Chaos"
DOI: 10.1063/1.4980135
Abstract: In this paper, a generalized description of the complex topology of turbulent premixed flames stabilized in a model gas turbine combustor is obtained using network analysis. Networks are created using the visibility algorithm applied to… read more here.
Keywords: premixed flames; turbulent premixed; network; network structure ... See more keywords
A Two-Fluid Conditional Averaging Paradigm for the Theory and Modeling of Turbulent Premixed Combustion
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Combustion"
DOI: 10.1155/2019/5036878
Abstract: This paper extends a recent theoretical study that was previously presented in the form of a brief communication (Zimont, C&F, 192, 2018, 221-223), in which we proposed a simple splitting method for the derivation of… read more here.
Keywords: turbulent premixed; two fluid; fluid conditional; averaging paradigm ... See more keywords