1. Diffusion flames tend to have a less-localized flame front than premixed flames.2. Diffusion flames have an entirely different appearance in a microgravity environment.3. Howard says this is important because your question really only applies to diffusion flames . 4. Diffusion flames are often studied in counter flow ( also called opposed jet ) burners.5. Combustion occurs in a boundary layer diffusion flame adjacent to the surface of the solid propellant. 6. In a diffusion flame , oxygen and fuel diffuse into each other; the flame occurs where they meet. 7. The first is a diffusion flame . 8. In combustion, a "'diffusion flame "'is a flame in which the oxidizer combines with the fuel by diffusion. 9. A candle creates a diffusion flame . 10. The mass fraction of species and temperature fields can be measured or calculated in laminar counterflow diffusion flame experiments.