Ultrafast X-ray tomography raw-data of bubbly two-phase pipe flow around a ring-shaped constriction

<p>For the investigation of bubbly two-phase flow,&nbsp;which should serve as a future benchmark experiment for CFD code validation, an experimental study has been conducted at the&nbsp;<strong>T</strong>ransient Tw<strong>o-P</strong>hase&nbsp;<strong>Flow</strong>&nbsp;(TOPFLOW) facility at Helmholtz-Zentrum Dresden &ndash; Rossendorf (HZDR) using&nbsp;ultrafast electron beam X-ray tomography (UFXRAY). In this study, flow constrictions were installed into a pipe&nbsp;to create a generic three-dimensional flow field&nbsp;as an advanced test case for CFD codes. UFXRAY provide valueable data of the gas phase dynamics with high temporal and spatial resolution.</p>

<p>The provided data set contains&nbsp;tomography raw-data&nbsp;for the experimental series L30&nbsp;that uses a&nbsp;<strong>ring shaped</strong>&nbsp;flow constriction with a blockage ratio of 0.5.&nbsp;</p>

<p>For visualization, the data might be opend with Fiji. Therefore choose Import-&gt;Raw... In the following window specify &quot;Image type&quot; as 16-bit Unsigned, &quot;Width&quot; as 288 pixels and &quot;Height&quot; as 500 pixels for 2x1000Hz measurement&nbsp;or 200&nbsp;pixels for 2x2500Hz measurement. Make sure that &quot;Little-endian byte order&quot; is checked. A data set contains&nbsp;image frames of both scanning planes in alternating order. Therefore, if only a single scanning plane is required, the offset and gap parameters need to be set to 288000 bytes for 2x1000Hz measurement or&nbsp;115200 bytes for 2x2500Hz measurement.</p>

{'p1': '为探究泡沫状两相流动，该流动未来将作为计算流体力学（CFD）代码验证的基准实验，在赫尔姆霍兹德累斯顿-罗森多夫中心（HZDR）的瞬态两相流动（TOPFLOW）设施中，采用超快电子束X射线断层扫描技术（UFXRAY）进行了一项实验研究。本研究中，在管道中安装了流道缩窄装置，以构建一个通用的三维流动场，作为CFD代码的高级测试案例。UFXRAY提供了具有高时空分辨率的气相动力学宝贵数据。', 'p2': '提供的数据集包含实验系列L30的断层扫描原始数据，该系列使用环状流道缩窄装置，堵塞比为0.5。', 'p3': '为进行可视化，可以使用Fiji软件打开数据。因此，请选择导入->原始数据...在随后的窗口中，指定“图像类型”为16位无符号，对于2x1000Hz测量，“宽度”为288像素，“高度”为500像素；对于2x2500Hz测量，“宽度”为200像素。请确保已勾选“小端字节序”。数据集包含交替顺序的扫描平面的图像帧。因此，如果只需单个扫描平面，对于2x1000Hz测量，偏移量和间隙参数需要设置为288000字节，对于2x2500Hz测量，设置为115200字节。'}