Two-Phase Shear Flow Instability in Rarefied Gas

Two-phase flow experimental data obtained from the TEMPusVoLA facility during the 75th ESA Zero-gravity parabolic flight campaign. The experiment, designated 'System 3' contains low pressure gas and analogue dust particles that experience a shear with respect to one another. DATA Products: The pressure of the gas is logged continuously. The output can be found in the file: DATALOG_20210427_082437.csv The acceleration of the aircraft is measured from the cockpit. The output can be found in the file: 0230.csv High-speed imaging movie files are saved in multiple directories, as output from a photron 95 camera. The original movies and metadata suitable for photron viewer can be found in the zipped directories: day1_p1.zip, day1_p1_01.zip, and day1_p1_02.zip. Particle Image Velocimetry (PIV) is performed on imaging data obtained with a high-speed camera and synchronized pulsed light source. The acquisition and data processeing are performed using the DAVIS software from LaVision GMbH, and therefore require the appropriate licence to view and analyze. The raw PIV vector fields are therefore in the proprietary format and can be found in the tarball: archive_vc7.files.tar.gz. Quick-look data can be found here in unprotected format: - A .mp4 movie of the high-speed imaging data is available in the file: combined_p1_movie_annotated.mp4 - .gif files presenting the PIV vector fields, corresponding to seconds 4, 10, and 17 respectively: vector_field_s4.gif, vector_field_s10.gif, vector_field_s17.gif本数据集采集自第75届欧洲空间局（ESA）失重抛物线飞行任务中TEMPusVoLA试验台获取的两相流实验数据。本次实验编号为“System 3”，实验介质包含低压气体与模拟尘埃颗粒，二者之间存在相对剪切运动。 数据产品如下： 1. 气体压力数据：采用连续记录方式，输出文件为DATALOG_20210427_082437.csv。 2. 飞行器加速度数据：由座舱端采集，输出文件为0230.csv。 3. 高速成像视频文件：由Photron 95高速摄影机拍摄，存储于多个目录中。原始视频及适配Photron Viewer的元数据可从压缩包day1_p1.zip、day1_p1_01.zip及day1_p1_02.zip中获取。 4. 粒子图像测速（Particle Image Velocimetry, PIV）数据：基于高速摄影机与同步脉冲光源获取的成像数据开展处理，数据采集与后处理采用LaVision GmbH开发的DAVIS软件完成，因此查看与分析需获取对应授权。原始PIV矢量场文件采用专有格式存储，可从压缩包archive_vc7.files.tar.gz中获取。 5. 快速预览数据以无保护格式提供： - 高速成像数据的MP4格式视频文件：combined_p1_movie_annotated.mp4 - 分别对应第4秒、第10秒及第17秒的PIV矢量场GIF文件：vector_field_s4.gif、vector_field_s10.gif、vector_field_s17.gif