Base case simulation of 'Parameters affecting plug characteristics in dense phase pneumatic conveying of ellipsoidal particles'

OpenFOAM and Aspherix simulation data for the paper, 'Parameters affecting plug characteristics in dense phase pneumatic conveying of ellipsoidal particles.' The study examines the plug flow of ellipsoidal particles in dense phase horizontal pneumatic conveying within a rigid and cylindrical pipe with periodic boundaries in the axial direction. We use coupled Computational Fluid Dynamics (CFD) -- Discrete Element Method (DEM) simulations to investigate the effect of particle shape on four plug characteristics: velocity, length, porosity, and particle exchange rate with the stationary bed. Both ellipsoidal and spherical particles are used, and the parameters varied are the particle size, aspect ratio, pressure gradient, particle--particle and particle--wall sliding and rolling friction coefficients, and coefficients of restitution. The provided simulation data is for the case that is defined as the "base case" in the paper. The simulation was run using 'CFDEMcoupling-Nonspherical-6.1.0' and 'Aspherix-6.1.0.' Aspherix is a proprietary software from DCS Computing and well recognized within Discrete Element Method (DEM) research community. This dataset is contained in a single zip file, which includes all the files produced from the simulation and the input files to re-run. The other simulation cases in the publication are created by varying the parameters of this base case simulation folder.

本数据集为论文《椭圆形颗粒密相气力输送中影响栓流特性的参数》配套的OpenFOAM与Aspherix仿真数据。本研究针对轴向带有周期性边界条件的刚性圆柱管道内的椭圆形颗粒密相水平气力输送栓流过程展开分析。我们采用计算流体动力学（Computational Fluid Dynamics, CFD）与离散单元法（Discrete Element Method, DEM）耦合仿真手段，探究颗粒形状对四类栓流特性的影响规律，分别为栓流速度、栓流长度、孔隙率以及与静止床层间的颗粒交换速率。研究中同时采用椭圆形颗粒与球形颗粒，可变参数包括颗粒粒径、长径比、压力梯度、颗粒间与颗粒-管壁的滑动摩擦系数、滚动摩擦系数以及恢复系数。本次提供的仿真数据对应论文中定义为“基准工况”的仿真场景，仿真使用CFDEMcoupling-Nonspherical-6.1.0与Aspherix-6.1.0软件完成。Aspherix是DCS Computing公司开发的专有软件，在离散单元法研究领域广受认可。本数据集打包为单个ZIP压缩文件，包含所有仿真生成文件与可用于复现仿真的输入文件。论文中其余仿真工况均通过修改该基准工况仿真文件夹内的参数生成。