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Numerical Simulation of Bubble Behavior before Inclined Solidified Front

机译：倾斜凝固前沿前气泡行为的数值模拟

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摘要

In order to investigate bubble behavior before inclined solidified front, a numerical simulation model is developed, in which level set method and modified heat transfer equation is applied to simulate the dynamic evolution of gas-liquid interface and solidification process under a fixed grid frame. Meanwhile, an in-situ experiment of bubble behavior before inclined ice solidified front was exacted to validate the numerical model. The effects of bubble diameter, inclined angle of solidified front and cooling rate on its behavior are investigated both numerically and experimentally. The results show that as bubble diameter increasing, inclined angle increasing and cooling rate decreasing, the bubble entrapment possibility is decreasing. Each critical point for entrapment is also studied numerically.
机译：为了研究倾斜凝固前沿前的气泡行为，建立了数值模拟模型，其中采用水平集方法和修正的热传递方程来模拟固定网格框架下气液界面和凝固过程的动态演化。同时，对倾斜的冰块凝固前的气泡行为进行了现场实验，以验证数值模型的正确性。数值和实验研究了气泡直径，凝固前沿倾斜角和冷却速率对其行为的影响。结果表明，随着气泡直径的增大，倾斜角的增大和冷却速度的减小，气泡截留的可能性减小。陷害的每个关键点也得到了数值研究。

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  • 来源
    《ISIJ international》 |2013年第5期|830-837|共8页
  • 作者

    Zuosheng LEI; Chaoyue CHEN; Xiaoxing JIN; Yun-bo ZHONG; Zhongming REN;

  • 作者单位

    Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai, 200072 P. R. China;

    Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai, 200072 P. R. China;

    Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai, 200072 P. R. China;

    Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai, 200072 P. R. China;

    Shanghai Key Laboratory of Modern Metallurgy and Material Processing, Shanghai University, Shanghai, 200072 P. R. China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bubble; solidified front; level set method; numerical simulation; continuous casting;

    机译：气泡;固化前水平设置方法;数值模拟连铸;

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