EXPERIMENTAL STUDIES ON THE DYNAMICS AND EVAPORATION OF TANDEM LIQUID DROPLETS IN A HOT GAS-FLOW

被引：8

作者：

CHOI, KJ ^{[1
]}

LEE, HJ ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT MECH ENGN,CHICAGO,IL 60680

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1992年 / 35卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0017-9310(92)90312-G

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Dynamics and evaporation of tandem droplets moving upward in a free convective thermal boundary layer were experimentally investigated. The free convective boundary layer was formed from a hot isothermal vertical plate which has a high wall-to-ambient temperature difference. The gas velocity and temperature profiles were numerically obtained using the variable gas property model, and the results were used to analyze the droplet dynamic behavior and vaporization process. The effects of droplet interaction in the streamwise direction and mass transfer on the drag coefficient were studied. In addition, the effects of droplet dynamics on droplet evaporation were investigated. The experimental parameters tested in this study were the initial droplet size, spacing between droplets, and liquid properties. New drag coefficients for various liquids and droplet spacings were obtained and applied to the vaporization process.

引用

页码：2921 / 2929

页数：9

共 21 条

[1] A COMPARISON OF VAPORIZATION MODELS IN SPRAY CALCULATIONS [J].