The better understanding of MIE is important for improved designs with better fuel efficiency and lower emission and for preventing the flame initiation to happen for safety reasons
Dependent on the pressure, initial temperature, mixture composition and ignition source volume
Fuel-lean condition
Low emissions and high efficiency
Challenge: failures of flame initiation or flame extinction
Primary Reference Fuels (PRF)
More complex transport process
Lewis number changes from under unity (rich mixtures) to 3 (lean mixtures)
Methodology
1-dimensional geometries, detailed chemistry and detailed molecular transport
Premixed fuel/air mixtures
Fuel: PRF (iso-octane and n-heptane mixtures)
Ignition source
Starting from t = 0 in the neighborhood of the inner domain boundary(r = 0)
Geometry: spherical, cylinder, planar
Challanges
Large mechanismus, the calculations of n-heptane and iso-octane take long
Determination of flame initiation failure, flame successfully initiated but then quenches, and flame propagation
