کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5128122 1489382 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multi-scale modeling of flow resistance in granular porous media
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Multi-scale modeling of flow resistance in granular porous media
چکیده انگلیسی

A new methodology for modeling fluid flow through porous beds consisting of spherical or quasi-spherical particles is proposed. The proposed approach integrates the Discrete Element Method (DEM) with Computational Fluid Dynamics (CFD) techniques. A porous bed was first modeled using the DEM to quantify its pore structure, including the number, coordinates and diameters of all spheres in the bed. Then, a numerical algorithm (PathFinder) is developed to use the DEM simulation results to calculate the micro-scale properties of the porous bed, including porosity, tortuosity and other geometrical parameters. Finally, the determined property parameters are used in a CFD model to simulate fluid flow through porous beds. It was shown that the Discrete Element Method was capable of simulating the spatial structure of granular porous media, providing geometrical parameters that are required by commonly used models for predicting flow through porous media.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mathematics and Computers in Simulation - Volume 132, February 2017, Pages 159-171
نویسندگان
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