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Showing 1 to 4 of 4 for “"Tangential strain rate"”.
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LARGE EDDY SIMULATION OF TURBULENT HYDROGEN FLAMES
… diffusion and flame stretch, with emphasis on tangential strain rate. The results show that these effects strongly influence flame structure, local reactivity, and stability, especially in lean premixed hydrogen–air mixtures. Their interaction leads to deviations from classical combustion …
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Fundamental studies of flame propagation in lean-burn natural gas engines
… be improved by employing a dual-fuel ignition strategy in which a small quantity of diesel fuel is injected to initiate ignition. Computational studies of n-heptane/methane-air mixing layers are performed to provide insight into the fundamental physics of dual-fuel ignition. The results show that …
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Turbulent flame propagation characteristics of high hydrogen content fuels
… stretch-sensitive, turbulent premixed flames generated in a low swirl burner (LSB). This study uses a scaling law, developed in an earlier thesis from leading point concepts for turbulent premixed flames, to collapse turbulent flame speed data over a wide range of conditions. The flow and flame …
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Turbulent partially premixed combustion: DNS analysis and RANS simulation
… the instantaneous and averaged reaction rates and the "Flame Index", which indicate premixed and diffusion burning modes coexisting. The behaviour of turbulent flame stretch and its relation to other physical processes, in particular the scalar-turbulence interaction, the effects of …