کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
159250 457031 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical investigation of closures for interface forces acting on single air-bubbles in water using Volume of Fluid and Front Tracking models
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Numerical investigation of closures for interface forces acting on single air-bubbles in water using Volume of Fluid and Front Tracking models
چکیده انگلیسی

Closures for the drag and virtual mass forces acting on a single air bubble rising in initially quiescent pure water have been numerically investigated using direct numerical simulation techniques. A 3D Front Tracking model was used and the results were compared with simulation results obtained with a 2D Volume of Fluid model to assess the influence of the third dimension. In the simulations realistic values were taken for the physical properties, i.e., a density ratio of 800. The computed time-averaged terminal rise velocity and mean aspect ratio for individual air bubbles ranging in equivalent diameter from 1 to 10 mm rising in pure water compare well with available experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 60, Issue 22, November 2005, Pages 6169–6175
نویسندگان
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