A new approach to account for finite thermal conductivity and turbulence effects within atomizing droplets of an evaporating spray is presented in this paper. The model is an extension of the T-blob and T-TAB atomization/spray model of Trinh and Chen [Atomization and Sprays, 16(6), pp. 907–932]. This finite conductivity model is based on the two-temperature film theory in which the turbulence characteristics of the droplet are used to estimate the effective thermal diffusivity for the liquid-side film thickness. Both one-way and two-way coupled calculations were performed to investigate the performance of this model against the published experimental data.

Issue Section:
Technical Briefs
Keywords:
evaporation, spray, numerical modeling, turbulence, thermal conductivity, thermal diffusivity, drops, sprays, evaporation
Topics:
Drops, Evaporation, Sprays, Thermal conductivity, Turbulence, Thermal diffusivity, Temperature
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