turbulent flame
CFD simulation of vented explosion and turbulent flame propagation
... Abstract. Very rapid physical and chemical processes during the explosion require both quality and quantity of detection devices. CFD numerical simulations are suitable instruments for more detailed determination of ...
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Development of a video signal based non invasive method for measurement of turbulent flame temperature
... for turbulent flames. Average flame features for a small time period are compared with actual flame temperature to establish a ...for flame feature extraction in a pressurised fuel supplied ...
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Gas Explosion Venting: External Explosion Turbulent Flame Speeds that Control the Overpressure
... by turbulent flame propagation external to the ...external flame speed has not been ...external flame speeds in a small vented explosion test facility can be predicted from Taylors’s acoustic ...
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MODELING OF TURBULENT FLAME VELOCITY FOR SPARK IGNITION ENGINES
... a turbulent flame propagation model that was dependent on the structure of the turbulent flow field and applied to combustion in a spark ignition engine for iso-octane air ...laminar flame ...
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Mixing modelling framework based on Multiple Mapping Conditioning for the prediction of turbulent flame extinction
... Sandia flame F, a flame with a relatively high Reynolds number and a considerable 70 degree of extinction and re-ignition that has never been explored in the MMC context, and 71 we assess the model ...
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Turbulent Flame Stabilization Methods Using Confinement, Diluents, and High-Potential Electric Fields.
... the flame base (lowest level of flame ...varying flame liftoff ...the flame was approximately 5 inches for all of the trials observed, thus the primary electrode was always surrounding the ...
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Measurements and correlations of turbulent burning velocities over wide ranges of fuels and elevated pressures
... explosion flame kernels enable burning velocities to be measured close to the safe working pressure of the explosion ...bomb, turbulent [2] burning ...speed flame photography define the smoothed area ...
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Numerical modelling of vented lean hydrogen–air deflagrations using HyFOAM
... the flame propagation in lean mixtures. Turbulent flame speed increases with decreasing Lewis number of the deficient reactant, this effect is especially profound for lean hydrogen mixtures, which ...
8
LES Modelling of Propagating Turbulence Premixed Flames using a Dynamic Flame Surface Density Model
... propagating turbulent flame. The flame is initiated from igniting a stoichiometric propane/air mixture from ...dynamic flame surface density (DFSD) model 7 in the context of ...the ...
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The turbulent burning velocity of iso-octane/air mixtures
... expanding turbulent flame, its propagation is usually monitored by measuring the chamber pressure or by schlieren ...the flame brush, whereas schlieren imaging provides a flame front ...
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Simulations of edge flame propagation in turbulent non premixed jets
... Ignition, flame propagation and stabilisation have been simulated and analysed in a turbulent jet of non-premixed methane and ...(CMC) turbulent combustion model was fully coupled with a ...
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An Experimental Study of Flame Stabilization Mechanisms in Turbulent Non-premixed Jet Flames Under Autoignitive Conditions.
... tribrachial flame edge or lifted MILD flames, depending on the fuel mole ...methane/air flame at φ = ...propagating turbulent flame to flameless HCDI (homogeneous charge diffusion ignition) ...
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Comparison of the explosion characteristics and flame speeds of pulverised coals and biomass in the ISO standard 1 m3 dust explosion equipment
... and turbulent flame speeds and burning velocities were ...avoid flame flashback and ...the flame propagation. This unburned coal or biomass was not in the flame zone and did not act as ...
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LES investigation of two frequency effects on acoustically forced premixed flame
... of turbulent premixed flame to external acoustic forcing plays a dominant role in the development of combustion ...ethylene/air flame externally forced by strong inlet velocity ...
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Impact of non-central vents on vented explosion overpressures
... emerging flame and the external explosion increases in overpressure with the vent flow velocity (Harrison and Eyre, ...The turbulent flame and the turbulent level of the external explosion is ...
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Stretch Rate Effects and Flame Surface Densities in Premixed Turbulent Combustion up to 1.25 MPa
... the turbulent flame ...the flame thickness is small, a clear demarcation was generated between products and reactants, which can be identified as the flame ...the flame front were ...
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Flame and Fire Boundary Tracking Using Self Adaptive Technique
... identifying flame edges for the geometric characterization of a flame [12], [13] or fire [14], ...the flame/fire edge ...the flame contours by detecting the changes of brightness in the ...
5
Turbulent burning rates of gasoline components, Part 2-Effect of carbon number
... significant flame acceleration at the critical flame radius for the onset of cellularity is caused by an associated increase in flame surface area ...in flame acceleration at the onset of ...
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Direct Numerical Simulation of Premixed Flame Kernel Ignition of Hydrogen-Air Mixtures under Turbulent Conditions.
... the flame kernel over time. A flame in a turbulent flow-field is subjected to curvature effects and tends to get ...the flame surface and describe the departure from stable burning conditions ...
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