Supplementary material for Hydrodynamics in a Randomly Packed Bed with Spherical Particles: A Comparison between PR-CFD Simulations and MRI Experiments

The data and scripts used in the experiments and simulations can be found in ‘SupplementaryMaterial.zip’. Inside the folder ‘/Figures’ the data to plot the figures of the article ‘Hydrodynamics in a Randomly Packed Bed with Spherical Particles: A Comparison between PR-CFD Simulations and MRI Experiments’ are provided. <br>Inside the folder ‘/Reconstructed packing’ the positions and radii of the particles are provided, which allows to reconstruct the spherical particle packing used in the flow simulations. The raw image data in DICOM format from which these sphere positions and radii are obtained is provided inside the subfolder ‘/Raw data’. Inside the folder ‘/Matlab script for MRI’ the velocity data obtained from the MRI experiments is provided. The MATLAB scripts to calculate the velocity profiles in the article are provided as well. The raw spectrometer files in MRD format from which the velocity data is obtained are provided inside the subfolder ‘/Raw data’. <br>Inside the folder ‘/Matlab script for PR-CFD’ the scripts for calculating the radial velocity and cumulative flow profiles which are reported in the article can be found. Figure 4 and 5 can be generated with the python script inside the folder ‘/Python script for PR-CFD’ from the vtk files which can be provided upon requests.<br>

本实验与模拟所用的数据及脚本均可于`SupplementaryMaterial.zip`中获取。`/Figures`文件夹内提供了论文《球形颗粒随机填充床内流体动力学：PR-CFD模拟与磁共振成像（Magnetic Resonance Imaging, MRI）实验对比》（Hydrodynamics in a Randomly Packed Bed with Spherical Particles: A Comparison between PR-CFD Simulations and MRI Experiments）的绘图所需数据。
`/Reconstructed packing`文件夹内提供了颗粒的位置与半径数据，可用于重构流场模拟所用的球形颗粒填充结构。用于提取上述颗粒位置与半径的数字成像与通信医学（Digital Imaging and Communications in Medicine, DICOM）格式原始图像数据，存放于子文件夹`/Raw data`中。
`/Matlab script for MRI`文件夹内提供了从磁共振成像实验中获取的流速数据，同时附带了用于计算论文中流速分布的MATLAB脚本。用于提取该流速数据的磁共振数据（Magnetic Resonance Data, MRD）格式原始光谱仪文件，同样存放于子文件夹`/Raw data`中。
`/Matlab script for PR-CFD`文件夹内包含了用于计算论文中径向流速与累积流量分布的脚本。图4与图5可通过`/Python script for PR-CFD`文件夹内的Python脚本，从可视化工具包（Visualization Toolkit, VTK）格式文件生成，相关VTK文件可按需提供。