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A Model of Atomization of a Transient Evaporative Spray
Technical Paper
1999-01-0913
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A model of atomization and evaporation of a transient spray is presented. This model includes several submodels. The submodel for the primary atomization of the spray core is based on the jet interface instabilities caused by aerodynamic action and includes an intact length model. The droplet secondary atomization is modelled by means of the Taylor analogy. A submodel of droplet evaporation has been developed, in which a heat-up or transient period and a steady state are taken into account, as well as convection effects. Finally a submodel of the droplet deceleration caused by the aerodynamic action due to the air-droplet relative velocity is included. The model is adjusted with the data obtained with a two component Phase-Doppler Anemometer in a test facility with variable air temperature (at atmospheric pressure) in which a Diesel spray is injected.
Authors
- Francisco V. Tinaut - Departamento de Ingeniería Energética y Fluidomecánica Universidad de Valladolid (Spain)
- Andrés Melgar - Departamento de Ingeniería Energética y Fluidomecánica Universidad de Valladolid (Spain)
- Blanca Giménez - Departamento de Ingeniería Energética y Fluidomecánica Universidad de Valladolid (Spain)
Citation
Tinaut, F., Melgar, A., and Giménez, B., "A Model of Atomization of a Transient Evaporative Spray," SAE Technical Paper 1999-01-0913, 1999, https://doi.org/10.4271/1999-01-0913.Also In
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