The influence of initial sizes and velocities of water droplets on transfer characteristics at high-temperature gas flow

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Abstract

We report the executed experimental investigation of initial sizes and velocities of water droplets movement influence on integral characteristics of its transfer (motion trajectories, velocities, sizes, relative concentration) through high-temperature (more than 1000 K) gas area. It was used the optical methods of two-phase gas-vapor-droplet mixtures diagnostics ("Particle Image Velocimetry" and "Interferometric Particle Imaging"). The limiting values of gas velocities, velocities and sizes of water droplets have been established when the complete droplet evaporation in high-temperature gas mixture is possible. Several modes of droplet motion through the gas flow in intensive evaporation conditions have been singled out and the dependences have been received which allowed to predict these modes.

Original languageEnglish
Pages (from-to)838-845
Number of pages8
JournalInternational Journal of Heat and Mass Transfer
Volume79
DOIs
Publication statusPublished - 1 Jan 2014

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Keywords

  • Evaporation
  • Heat and mass transfer
  • High-temperature gases
  • Optical methods of two-phase gas-vapor-droplet mixtures diagnostics
  • Water droplets

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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