Investigation of regularities of heat and mass transfer and phase transitions during water droplets motion through high-temperature gases

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Abstract

The macroscopic regularities of heat and mass transfer and phase transitions during water droplets motion through high-temperature (more than 1000 K) gases have been investigated numerically and experimentally. Water droplet evaporation rates have been established. Gas and water vapors concentrations and also temperature values of gas-vapor mixture in small neighborhood and water droplet trace have been singled out. Possible mechanisms of droplet coagulation in high-temperature gas area have been determined. Experiments have been carried out with the optical methods of two-phase gas-vapor-droplet mixtures diagnostics ("Particle Image Velocimetry" and "Interferometric Particle Imaging") usage to assess the adequateness of developed heat and mass transfer models and the results of numerical investigations. The good agreement of numerical and experimental investigation results due to integral characteristics of water droplet evaporation has been received.

Original languageEnglish
Article number865856
JournalAdvances in Mechanical Engineering
Volume2014
DOIs
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Mechanical Engineering

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