PIV Course 2022

Delft, the Netherlands, 10th - 14th October 2022

Particle Image Velocimetry is a measurement technique able to determine the instantaneous velocity field in a planar or volumetric domain. It is widely applied in both fundamental and applied fluid mechanics research. Following the success of the online PIV course held in 2020, a new PIV course is scheduled in 2022, which will take place in person in Delft, the Netherlands. The course discusses the fundamentals of the technique and examples of specific applications, including typical problems in microfluidics, turbulence, multiphase flows and aerodynamics. Next to the lectures, a number of practical sessions will be organized, where the participants can practice their skills and see some state-of-art facilities (e.g. tomographic PIV, high-speed PIV). The course is primarily targeted at PhD students of ERCOFTAC and the JM Burgerscentrum, but other interested researchers (postdocs, faculty, researchers from institutes and industry) are welcome to apply as well. Due to limitations on the available space in the practical sessions, the maximum number of participants is set to 35. Apart from a basic understanding of fluid mechanics, no prerequisite knowledge is required.

The following topics are discussed:

• PIV system components: tracers, lasers, optics, cameras
• Measurement fundamentals: cross-correlation, image density, loss-of-pairs
• Measurement regimes: stereoscopic PIV, multiphase flows, microfluidics, high-speed systems, volumetric methods (e.g. 3D-PTV/LPT, tomographic PIV)
• Data processing techniques: multi-pass correlation, multigrid methods, deforming windows, correlation averaging, multi-frame methods
• Data reduction and post-processing: vector validation, estimation of vorticity, detecting coherent structures, uncertainty quantification, data assimilation approaches

Experimental design and lab demos are given in the practical sessions. All lectures and practical sessions will be in person in the facilities of TU Delft.