Numerical investigation of the influence of convection in a mixture of combustion products on the integral characteristics of the evaporation of a finely atomized water drop

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Abstract

A model of the heat-and-mass transfer in the neighborhood of a finely atomized water drop moving through the high-temperature products of combustion of materials has been developed for numerical analysis of the macroscopic mechanisms of movement of such a drop in a mixture of combustion products and water vapor with account for the complex of interrelated physical processes and phase transitions taking place in this case. The influence of the convection on the integral characteristics of the evaporation of the indicated drop was analyzed and the sizes of its "temperature" and " concentration" wakes were estimated. The conditions under which the integral characteristics of the evaporation of this drop can be calculated in the diffusion approximation were determined.

Original languageEnglish
Pages (from-to)103-111
Number of pages9
JournalJournal of Engineering Physics and Thermophysics
Volume87
Issue number1
DOIs
Publication statusPublished - 1 Jan 2014

Fingerprint

combustion products
Evaporation
convection
evaporation
water
Water
wakes
Water vapor
mass transfer
numerical analysis
water vapor
Numerical analysis
Mass transfer
Phase transitions
vapors
heat
Temperature
products
approximation
Convection

Keywords

  • evaporation
  • finely atomized water
  • fire suppression
  • heat and mass transfer
  • simulation
  • water drop

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

Cite this

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AB - A model of the heat-and-mass transfer in the neighborhood of a finely atomized water drop moving through the high-temperature products of combustion of materials has been developed for numerical analysis of the macroscopic mechanisms of movement of such a drop in a mixture of combustion products and water vapor with account for the complex of interrelated physical processes and phase transitions taking place in this case. The influence of the convection on the integral characteristics of the evaporation of the indicated drop was analyzed and the sizes of its "temperature" and " concentration" wakes were estimated. The conditions under which the integral characteristics of the evaporation of this drop can be calculated in the diffusion approximation were determined.

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