Evaporation of Fuel Droplets in Turbulent Combustor Flow

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Abstract
Detailed measurements of a recirculating, droplet charged air flow within a model combustor are compared with predictions based on three different evaporation models. Similar results are obtained with the simplified d2-law, the uniform temperature model and thin skin model for relatively short droplet-heatup phases. Discrepancies, however, are observed under conditions where the droplet heating phase is relatively long, i.e. at low temperature conditions. Extended evaporation models, therefore, are necessary when the ignition performance is to be analysed.

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