کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9692413 | 1458619 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A computational study of the effect of initial bubble conditions on the motion of a gas bubble rising in viscous liquids
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A computational study of the effect of initial bubble conditions on the motion of a gas bubble rising in viscous liquids A computational study of the effect of initial bubble conditions on the motion of a gas bubble rising in viscous liquids](/preview/png/9692413.png)
چکیده انگلیسی
In order to examine the influence of initial bubble conditions on bubble rise motion, two-dimensional direct numerical simulations of the motion of a gas bubble rising in viscous liquids were carried out by a coupled level set/volume-of-fluid (CLSVOF) method. For dimensionless groups predicting a “spherical-cap bubble shape” (high Eötvös and low Morton numbers), we have found computationally that solutions depend on initial bubble conditions. Specifically, for spherical-cap bubble areas, we could obtain computational results of toroidal bubbles or spherical-cap bubbles depending on initial bubble conditions. On the other hand, we showed for low Eo and high M conditions that initial bubble conditions did not affect the final state of bubble rise motion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Multiphase Flow - Volume 31, Issue 2, February 2005, Pages 223-237
Journal: International Journal of Multiphase Flow - Volume 31, Issue 2, February 2005, Pages 223-237
نویسندگان
Mitsuhiro Ohta, Tatsuya Imura, Yutaka Yoshida, Mark Sussman,