Characteristics of velocity pulsations in a turbulent recirculated melt flow
Characteristics of velocity pulsations in a turbulent recirculated melt flow
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湍流再循环熔体流动中的速度脉动特征
DOI：
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发表时间：
2005
期刊：
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通讯作者：
E. Baake
中科院分区：
文献类型：
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作者：
M. Kirpo;A. Jakovičs;E. Baake
对于现代工业应用，有必要开发和研究高纯度或预测成分的金属和氧化物材料。这种材料可以通过感应熔炼方法生产，特别是在感应炉和冷坩埚炉中。在实验炉中进行的测量表明，速度脉动在熔体中的热质交换中占主导地位，特别是在典型的上涡流和下涡流之间的区域。了解脉动机制和开发交换特性估计模型对于工业炉的开发和优化非常重要。作者展示了实验结果，并提出了一种简单的感应炉 3D 大涡模拟 (LES) 模型，该模型可适用于实验数据的定性分析。
For the modern industrial applications it is necessary to develop and investigate metallic and oxide materials of a high purity or predicted composition. Such materials can be produced by the induction melting method, especially in inductor and cold crucible furnaces. Measurements taken in experimental furnaces show that the velocity pulsations are dominated for the heat and mass exchange in melt, especially in a zone between typical upper and lower eddies. Understanding of pulsations mechanism and development of models for estimation of exchange characteristics are very important for development and optimisation of industrial furnaces. The authors present experimental results and propose a simple 3D large eddy simulation (LES) model of induction furnace that can be adapted for qualitative analysis of experimental data.