Evaluation of a locally homogeneous flow model of spray evaporation

A model of spray evaporation based on the locally homogeneous flow assumption and a second order turbulence model was developed and evaluated against a wide range of experimental conditions. The turbulence was represented by a k-epsilon-g model employing a clipped Gaussian probability density function for mixture fraction fluctuations. Profiles of mean velocity, temperature, composition, and drop size distribution are presented. An estimation of single phase jet measurements is provided. Characteristics of the spray which were predicted by the model e.g., flow width, radial profiles, turbulence quantities and the axial rate of velocity decay and mixture fraction defect are discussed.