کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
160098 457060 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A discrete particle model for particle–fluid flow with considerations of sub-grid structures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
A discrete particle model for particle–fluid flow with considerations of sub-grid structures
چکیده انگلیسی

The effect of meso-scale structures on the hydrodynamic behaviors of particle–fluid systems is considered in an Eulerian–Lagrangian model utilizing the detailed particle distribution information provided by such models. The fluid flow is distributed within each computational cell from pressure balance considerations according to weighted local porosities, rather than by using traditional linear interpolations. The drag on each particle is then calculated with its local porosity and slip velocity, which shows significant difference to traditional methods. Simulations in this model have reproduced multi-scale flow behaviors in better agreement with experimental results, suggesting the validity of the model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 62, Issue 8, April 2007, Pages 2302–2308
نویسندگان
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