An experimental study was carried out with the purpose of determining the soot topography in a diffusion flame interacting with two consecutively generated vortices. The previously used experimental set-up was modified for generation of dual vortices and characterization of soot distributions in the interaction region by the laser induced incandescence technique. It is demonstrated in this article that repeatable vortex flame interactions can be obtained and the vortex interaction results show some interesting features that have not been observed in single vortex interactions before.
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