کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
661834 | 1458150 | 2008 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical investigation into the effects of wall roughness on a gas–particle flow in a 90° bend
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper presents a numerical study of a dilute gas–particle flow in a 90° bend by employing a Lagrangian particle-tracking model combined with a particle–wall collision model and a stochastic wall roughness model. The major objective of this study was to investigate the effects of wall roughness on the particle flow properties. The numerical simulation revealed that wall roughness significantly reduced the ‘particle free zone’ and smoothed the particle number density profiles by altering the particle rebounding behaviours. It was also found that wall roughness reduced the particle mean velocities and also increased the particle fluctuating velocities in both streamwise and transverse directions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 5–6, March 2008, Pages 1238–1250
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 5–6, March 2008, Pages 1238–1250
نویسندگان
Z.F. Tian, K. Inthavong, J.Y. Tu, G.H. Yeoh,