Recent developments in spray combustion: Experiments and modeling Conference Paper uri icon

abstract

  • The structure of axisymmetric spray diffusion flames was examined by coupling a monodispersed electrostatic spray to a co-flow burner. Laminar flames of heptane were stabilized in a co-flow of air. The initial droplet size was varied by a factor of two and the initial droplet velocity by about 20%. Droplet life-history along the centerline of the flames showed that the droplets follow the d-square law with evaporation coefficients ranging between 0.53 to 0.59 mm2/s. These values are a factor of two smaller than the evaporation coefficient of a droplet surrounded by an individual flame, which implies that the interactive effect between the droplets results in flame enveloping a droplet cloud within which droplets evaporate but do not burn.

author list (cited authors)

  • Gomez, A., Smooke, M. D., Chen, G., Karpetis, A., & Gao, L.

publication date

  • January 1997