کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
239405 465825 2006 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical simulation of bubble and particles motions in a bubbling fluidized bed using direct simulation Monte-Carlo method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Numerical simulation of bubble and particles motions in a bubbling fluidized bed using direct simulation Monte-Carlo method
چکیده انگلیسی

Flow behavior of bubbles and particles in a bubbling fluidized bed were numerically computed using Euler–Lagrange approach. Particle collision was simulated by means of the direct simulation Monte-Carlo (DSMC) method and hard-sphere model. The computed velocities and fluctuations of particles were in agreement with experimental data of Yuu et al. [S. Yuu, H. Nishikawa, T. Umekage, Numerical simulation of air and particle motions in group-B particle turbulent fluidized bed, Powder Technol. 118 (2001) 32–44]. The distributions of velocity, concentration, granular temperature and collision frequency of particles in a bubbling fluidized bed were analyzed. The wavelet multi-resolution analysis was used to investigate flow behavior of bubbles and particles. The bubble frequency of random-like bubble fluctuation was determined from the wavelet multi-resolution analysis over a time–frequency plane.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 169, Issue 3, 13 November 2006, Pages 159–171
نویسندگان
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