Cavitating bubble patterns, noise signals, and laser holographic images of composite propellers under non-uniform flow conditions

This dataset focuses on cavitating bubble patterns, noise signals, and laser holographic images of an HSP II five-bladed composite propeller (carbon fiber-reinforced epoxy, diameter 0.25 m, scale ratio 14.4) under non-uniform flow conditions. Collected in the K15 cavitation tunnel (SSSRI) with a customized wake generator (wake fraction: 0.014–0.576), the data were acquired via a synchronized multifield measurement system (high-speed camera: 3780 Hz; pressure sensor: 20480 Hz sampling rate) and a 532 nm laser digital inline holography (DIH) system (lateral resolution 16.67 μm, axial resolution 10 mm). Experiments were conducted at a fixed rotational speed of 21 rps, thrust coefficient KT​=0.2, and cavitation number (covering non-cavitation, tip vortex cavitation, sheet cavitation, and cloud cavitation regimes). The dataset includes high-speed images/videos of macroscopic cavitation morphologies, time-series pressure noise signals, and DIH images.

本数据集聚焦非均匀流场条件下HSP II型五叶复合螺旋桨（碳纤维增强环氧树脂，直径0.25米，缩比比14.4）的空泡流型、噪声信号及激光全息图像。数据采集于SSSRI的K15空泡水洞，实验配套定制尾流发生器（尾流分数范围0.014–0.576），通过同步多场测量系统（高速相机帧率3780 Hz；压力传感器采样率20480 Hz）与532 nm激光数字同轴全息（DIH, Digital In-line Holography）系统完成采集，该全息系统横向分辨率为16.67 μm，轴向分辨率为10 mm。实验设置固定转速21 rps（转每秒），推力系数K_T=0.2，空化数覆盖非空化、梢涡空化、片空化及云空化四类工况。本数据集包含宏观空化形态的高速图像/视频、时序压力噪声信号以及DIH全息图像。