scholarly journals On the statistics of flame stretch in turbulent premixed jet flames in the thin reaction zone regime at varying Reynolds number

2019 ◽  
Vol 37 (2) ◽  
pp. 2451-2459 ◽  
Author(s):  
Stefano Luca ◽  
Antonio Attili ◽  
Ermanno Lo Schiavo ◽  
Francesco Creta ◽  
Fabrizio Bisetti
Keyword(s):  
Reynolds Number ◽  
Reaction Zone ◽  
Jet Flames ◽  
Flame Stretch ◽  
Turbulent Premixed

Structure and burning velocity of turbulent premixed methane/air jet flames in thin-reaction zone and distributed reaction zone regimes

2019 ◽  
Vol 37 (2) ◽  
pp. 2537-2544 ◽  
Author(s):  
Zhenkan Wang ◽  
Bo Zhou ◽  
Senbin Yu ◽  
Christian Brackmann ◽  
Zhongshan Li ◽  
...  
Keyword(s):  
Reaction Zone ◽  
Burning Velocity ◽  
Jet Flames ◽  
Air Jet ◽  
Turbulent Premixed

One-Dimensional Modeling of Turbulent Premixed Jet Flames - Comparison to DNS

2016 ◽  
Vol 97 (3) ◽  
pp. 913-930 ◽  
Author(s):  
Naveen Punati ◽  
Haiou Wang ◽  
Evatt R. Hawkes ◽  
James C. Sutherland
Keyword(s):  
Jet Flames ◽  
One Dimensional ◽  
Dimensional Modeling ◽  
Turbulent Premixed

Large Eddy Simulation of Pilot Stabilized Turbulent Premixed CH4+Air Jet Flames

2018 ◽  
Author(s):  
Veeraraghava Raju Hasti ◽  
Gaurav Kumar ◽  
Shuaishuai Liu ◽  
Robert P. Lucht ◽  
Jay P. Gore
Keyword(s):  
Large Eddy Simulation ◽  
Jet Flames ◽  
Eddy Simulation ◽  
Air Jet ◽  
Large Eddy ◽  
Turbulent Premixed

Gradient Trajectory Analysis of the Burning Rate in Turbulent Premixed Jet Flames

2020 ◽  
Vol 192 (11) ◽  
pp. 2189-2207
Author(s):  
Dominik Denker ◽  
Antonio Attili ◽  
Konstantin Kleinheinz ◽  
Heinz Pitsch
Keyword(s):  
Burning Rate ◽  
Trajectory Analysis ◽  
Jet Flames ◽  
Turbulent Premixed

scholarly journals Dissipation Element Analysis of Turbulent Premixed Jet Flames

2019 ◽  
Vol 191 (9) ◽  
pp. 1677-1692 ◽  
Author(s):  
D. Denker ◽  
A. Attili ◽  
S. Luca ◽  
F. Bisetti ◽  
M. Gauding ◽  
...  
Keyword(s):  
Jet Flames ◽  
Element Analysis ◽  
Turbulent Premixed

scholarly journals Effects of Turbulent Reynolds Number on the Displacement Speed Statistics in the Thin Reaction Zones Regime of Turbulent Premixed Combustion

2011 ◽  
Vol 2011 ◽  
pp. 1-19 ◽  
Author(s):  
Nilanjan Chakraborty ◽  
Markus Klein ◽  
R. S. Cant
Keyword(s):  
Reynolds Number ◽  
Strain Rate ◽  
Surface Density ◽  
Three Dimensional ◽  
Flame Surface ◽  
Tangential Strain ◽  
Turbulent Reynolds Number ◽  
Qualitative Nature ◽  
Displacement Speed ◽  
Turbulent Premixed

The effects of turbulent Reynolds number on the statistical behaviour of the displacement speed have been studied using three-dimensional Direct Numerical Simulation of statistically planar turbulent premixed flames. The probability of finding negative values of the displacement speed is found to increase with increasing turbulent Reynolds number when the Damköhler number is held constant. It has been shown that the statistical behaviour of the Surface Density Function, and its strain rate and curvature dependence, plays a key role in determining the response of the different components of displacement speed. Increasing the turbulent Reynolds number is shown to reduce the strength of the correlations between tangential strain rate and dilatation rate with curvature, although the qualitative nature of the correlations remains unaffected. The dependence of displacement speed on strain rate and curvature is found to weaken with increasing turbulent Reynolds number when either Damköhler or Karlovitz number is held constant, but the qualitative nature of the correlation remains unaltered. The implications of turbulent Reynolds number effects in the context of Flame Surface Density (FSD) modelling have also been addressed, with emphasis on the influence of displacement speed on the curvature and propagation terms in the FSD balance equation.

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