Statistical Characterization of Helium-Filled Soap Bubbles Tracing Fidelity for PIV

The present work follows a previous study on the aerodynamic characterization of helium-filled soap bubbles (HFSBs) for large-scale PIV measurements. HFSBs were found to yield, on average, a time response of about 10s. However, the response of each individual tracer remained to be ascertained, which is the topic of the present study. The...

A quantitative flow visualization technique for on-site sport aerodynamics optimization

Aerodynamics plays a crucial role in many speed sports, where races are often won by fractions of a second. A thorough understanding of the flow field around an athlete is of paramount importance to optimize the athletes’ posture, garment roughness and equipment shape to achieve the minimum aerodynamic drag and maximum velocity. To date,...

Large-volume pressure from tomographic PTV in a surface mounted cylinder near-wake using HFSB tracers

A seeding system for large-scale Tomographic PIV in aerodynamics