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Showing 1 to 4 of 4 for “"Stratified Combustion"”.
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Modelling of turbulent stratified flames
Due to concerns about pollutant emission combustion systems are increasingly being designed to operate in a lean premixed mode. However, the reduction in emissions offered by lean premixed combustion can be offset by its susceptibility to instabilities and ignition and extinction problems. These …
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Numerical investigation of turbulent combustion regimes on localized forced ignition using stratified combustible mixture
Localized forced ignition of turbulent stratified mixtures has been numerically analyzed based on three- dimensional Direct Numerical Simulations (DNS) for different values of Karlovitz number (Ka) corresponding to different turbulent combustion regimes. The initial values of turbulent fluctuations …
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Experimental and Theoretical Investigation of Flame Propagation Through Compositionally Stratified Methane -Air Mixtures
"Flame propagation in compositionally stratified methane-air mixtures was studied experimentally and theoretically. Stratification was established in a controlled manner using a convective-diffusive balance with very slow fuel-air mixture inflows into an optically accessible test chamber and its …
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Laminar flame propagation in mixtures with compositional stratification at small length scales
… study using chemiluminescence imaging of stratified methane and propane flames was conducted to characterize their response to variations in overall mixture composition, strength and length scale of the stratification, and flow field velocity. A two-dimensional numerical study was …