A Study on Soot Formation in Unsteady Spray Flames via 2-D Soot Imaging

Paper #:
  • 920114

Published:
  • 1992-02-01
Citation:
Won, Y., Kamimoto, T., and Kosaka, H., "A Study on Soot Formation in Unsteady Spray Flames via 2-D Soot Imaging," SAE Technical Paper 920114, 1992, https://doi.org/10.4271/920114.
Pages:
14
Abstract:
:The formation and oxidation processes of soot particles in unsteady spray flames were investigated in a quiescent atmosphere using 2-D laser sheet visualization. The mid-plane of a flame was illuminated twice during a short time-interval by a laser sheet from a double-pulsed YAG laser. An image pair of the scattered light from soot particles was taken by two intensified gated cameras in succession. The velocity vectors of soot clouds at various location in the sooting region were estimated using the spatial correlation between the image pair. The results of temporal and spatial variation of velocity and scattering intensity in the evolving soot clusters made it clear that soot is mainly formed in the periphery of the flame tip where the air entrainment is less and flame temperature favors soot formation.
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