Mass transfer correlations for dissolution of cylindrical additions in liquid metals with gas agitation

被引：2
|
作者：
Ahmadi, Mehran Seyed [1 ]
Bussmann, Markus [2 ]
Argyropoulos, Stavros A. [1 ]
机构：
[1] Univ Toronto, Dept Mat Sci & Engn, Toronto, ON M5S 1A1, Canada
[2] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 1A1, Canada
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 97卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
MOLTEN ALUMINUM; PART I; SILICON DISSOLUTION; FORCED-CONVECTION; CIRCULAR-CYLINDER; DIFFERENT FLOW; HEAT-TRANSFER; BUBBLE; TURBULENCE; RATES;
D O I：
10.1016/j.ijheatmasstransfer.2016.02.043
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The results of an experimental study of the effect of gas agitation on mass transfer from cylindrical Si specimens to molten Al were used to deduce mean mass transfer coefficients in a two-phase flow. Then the three-dimensional gas-agitated liquid was simulated using the commercial software FLOW-3D, to obtain predictions of bubble distribution and estimates of the velocity field within the opaque liquid metal, to be used to predict mass transfer rates. An existing mass transfer correlation for a gas-agitated liquid without an external bulk flow was used to fit the experimental data within 5%. With a bulk velocity, a correlation for mass transfer from a vertical cylinder in cross flow was modified to incorporate the effect of gas injection, and it predicted the measured mass transfer coefficients within 11%. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：767 / 778
页数：12
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