کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
235644 465643 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A mathematical model considering the interaction of bubbles in continuous casting mold of steel
ترجمه فارسی عنوان
مدل ریاضی با توجه به تعامل حباب ها در قالب ریخته گری مستمر فولاد
کلمات کلیدی
ریخته گری مستمر، حباب، انعطاف پذیری، گزاف گویی، شکستن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• This paper established a new model considering the interaction of bubbles.
• This paper can describe the motion of different size bubbles.
• The phenomena of bubbles coalescence, bounce and breakup can be observed.

To improve the slab quality, it is essential to design an innovative model for understanding the bubbles’ behavior in the continuous casting mold. However, the influence of interaction of bubbles on the motion of dispersed phases has not been considered in most of mathematical simulation models. The purpose of the current work was to establish a new model to simulate the motion of gas bubbles in the mold. In this paper, the mathematical model being related to the interaction of bubbles (coalescence, bounce and breakup) was established using the user-defined functions to predict the behavior and distribution of gas bubbles. Introducing the interaction of bubbles, the size of bubbles will change in the process of collision and broken, so the results can give a good explanation to the motion of different size bubbles, and the phenomena of bubbles coalescence, bounce and breakup actually exist. The results show that the larger bubbles float up to the top surface as soon as they get out of the ports, while the smaller bubbles following the flow arrive at the narrow surface. The proposed mathematical model can described the behavior of bubbles exactly in the steel continuous casting process.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 273, March 2015, Pages 154–164
نویسندگان
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