Outwardly growing premixed flames in turbulent media

The propagation of outwardly expanding premixed flames in turbulent media is examined within the context hydrodynamic theory wherein flame, treated as a surface density discontinuity separating fresh combustible mixture from burned products, propagating at speed dependent upon local geometric and mixture/flow characteristics. An embedded manifold approach, one adept handling multi-valued disjointed surfaces which are frequently observed real flames, used to couple flow flame evolution. A sensitivity analysis, based on mixtures with different Markstein numbers, performed investigate early kernel development addition its long-term focus understand effect characteristics, distinguished by intensity velocity fluctuations integral length scale, intrinsic instabilities (predominantly Darrieus-Landau instability) propagation. overarching objective quantify their influence morphology burning rate construct scaling laws for through appropriate modifications Damköhler’s first hypothesis. Flame-turbulence interactions inferred statistical quantities developing topology, including curvature strain, combined effects integrated into stretch experienced deviation laminar speed.