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首页> 外文期刊>International Journal of Heat and Mass Transfer >Mass transfer correlations for dissolution of cylindrical additions in liquid metals with gas agitation
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Mass transfer correlations for dissolution of cylindrical additions in liquid metals with gas agitation

机译：气体搅拌下圆柱形添加剂在液态金属中的溶解的传质相关性

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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 %.
机译：气体搅拌对从圆柱状硅样品到熔融铝的传质影响的实验研究结果被用于推导两相流中的平均传质系数。然后使用商业软件FLOW-3D对三维气体搅动的液体进行模拟，以获得气泡分布的预测和不透明液态金属内部速度场的估计，以用于预测传质速率。没有外部体积流量的气体搅拌液体的现有传质相关性用于将实验数据拟合到5％以内。对于整体速度，修改了横流中垂直圆柱体传质的相关性，以结合气体注入的影响，它预测测得的传质系数在11％以内。

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  • 作者

    Mehran Seyed Ahmadi; Markus Bussmann; Stavros A. Argyropoulos;

  • 作者单位

    Department of Materials Science and Engineering, University of Toronto, ON, Canada;

    Department of Mechanical and Industrial Engineering, University of Toronto, ON, Canada;

    Department of Materials Science and Engineering, University of Toronto, ON, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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