The present work reviews the recent developments in the domain of particle image velocimetry (PIV) with attention to its use for large-scale problems of interest for industrial aerodynamics. The article introduces the fundamental principles of flow seeding for large-scale experiments based on the helium-filled soap bubble (HFSB) technique. The measurement of flow tracers in a three-dimensional domain is presented, which is based on Lagrangian tracking methods. Furthermore, the concept of co-axial volumetric velocimetry is introduced and its combination with robotic arm manipulation is shown. The work presents two main examples of applications to aerodynamic problems: the first is the flow field around a propeller aircraft at wind tunnel free-stream velocity up to 50 m s⁻¹, which to date is considered the boundary of large-scale PIV application with HFSB. The second example is the complex three-dimensional flow field around a cyclist at full scale. The work summarizes developments obtained in the last 3 years of research, demonstrating that the domain of PIV techniques is still undergoing vivid developments.

本工作回顾了粒子图像测速技术（PIV）领域的最新发展，并关注其在工业空气动力学中关注的大规模问题中的应用。本文介绍了基于充氦肥皂泡（HFSB）技术的大规模实验的流播基本原理。提出了一种基于拉格朗日跟踪方法的三维域流量跟踪器的测量方法。此外，介绍了同轴体积测速的概念，并显示了其与机械手操作的组合。这项工作提出了两个主要示例，用于解决空气动力学问题：第一个是螺旋桨飞机周围的流场，风洞自由流速度高达50 ms ^-1，迄今被认为是使用HFSB进行大规模PIV应用的边界。第二个示例是骑车人周围的完整三维流场。该工作总结了最近三年研究取得的进展，表明PIV技术的领域仍在蓬勃发展。