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A laser anemometer seeding technique for combustion flows with multiple stream injection

  • Author(s): Ikioka, LM
  • Brum, RD
  • Samuelsen, GS
  • et al.
Abstract

In nonpremixed combustion systems, fuel and oxidant are injected into the reaction chamber via two or more separate streams. Velocity measurements by laser anemometry within the chamber may be biased by individual streams unless the seeding concentrations of both streams are uniform and constant. In order to meet this requirement, a seeding technique has been developed to disperse 1-μm metal oxide particles at a controllable rate. Evaluations of the steadiness of particle generation indicate rms fluctuations are within 1.5% of the particle generation rate. Demonstration of the technique has been conducted in both nonreacting and reacting flows. © 1983.

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