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

被引：75
作者：
Volkov, Roman S. [1 ]
Kuznetsov, Geniy V. [1 ]
Stizhak, Pavel A. [1 ]
机构：
[1] Natl Res Tomsk Polytech Univ, Inst Power Engn, Tomsk 634050, Russia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2014年 / 79卷
基金：
俄罗斯基础研究基金会;
关键词：
Water droplets; Evaporation; Heat and mass transfer; High-temperature gases; Optical methods of two-phase gas-vapor-droplet mixtures diagnostics; EVAPORATION; DYNAMICS; MODEL;
D O I：
10.1016/j.ijheatmasstransfer.2014.09.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
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. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：838 / 845
页数：8
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