کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6677875 465679 2013 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
DEM validation using an annular shear cell
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
DEM validation using an annular shear cell
چکیده انگلیسی
The discrete element method (DEM) is often used as the gold standard both for modeling and predicting the flow behavior of granular material flows, yet much of the validation of this technique has been largely indirect and qualitative. In this paper, we outline new work on quantitative validation of DEM simulations using detailed measurements of simple, well-characterized flows in an annular shear cell. Experimentally, we use digital particle tracking velocimetry (DPTV) to obtain velocity, solids fraction, and granular temperature profiles. Computationally, we compare the results obtained using different contact mechanics force laws. We find that the spring-dashpot model is the most accurate when polymeric beads are used in the experiments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 248, November 2013, Pages 131-142
نویسندگان
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