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

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 language	English
Pages (from-to)	838-845
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	79
DOIs	https://doi.org/10.1016/j.ijheatmasstransfer.2014.09.006
Publication status	Published - 1 Jan 2014

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

Access to Document

10.1016/j.ijheatmasstransfer.2014.09.006

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

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.",

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

author = "Volkov, {Roman S.} and Kuznetsov, {Geniy V.} and Stizhak, {Pavel A.}",

year = "2014",

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doi = "10.1016/j.ijheatmasstransfer.2014.09.006",

language = "English",

volume = "79",

pages = "838--845",

journal = "International Journal of Heat and Mass Transfer",

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T1 - The influence of initial sizes and velocities of water droplets on transfer characteristics at high-temperature gas flow

AU - Volkov, Roman S.

AU - Kuznetsov, Geniy V.

AU - Stizhak, Pavel A.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - 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.

AB - 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.

KW - Evaporation

KW - Heat and mass transfer

KW - High-temperature gases

KW - Optical methods of two-phase gas-vapor-droplet mixtures diagnostics

KW - Water droplets

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