In the realm of fluid mechanics, understanding the behavior of fluid flow within pipes is of utmost importance. The study of pipe flow has long been a subject of fascination for researchers, engineers, and scientists alike. While traditional approaches have primarily focused on analyzing 2D flow, the advent of advanced technologies has opened up new avenues for investigating the complex dynamics of 3D pipe flow. In this our lab, we delve into the captivating world of 3D pipe flow measurement, highlighting its significance and the cutting-edge techniques employed in unraveling its intricacies
Our lab uses Tomographic High-Speed Particle Image Velocimetry that represents a significant breakthrough in flow measurement technology. Unlike traditional velocimetry methods that capture only a single plane of a flow field, THSPIV provides a comprehensive three-dimensional view of fluid motion. By employing high-speed cameras, synchronized laser illumination, and advanced algorithms, this technique allows researchers to visualize and quantify fluid velocity in all three dimensions with exceptional accuracy and temporal resolution.
THSPIV's ability to capture detailed flow structures and quantify velocity fields in three dimensions has opened up a vast array of research opportunities. From studying turbulence and vortex dynamics to understanding multiphase flows and combustion processes, the applications of THSPIV are far-reaching. This technique has proven invaluable in fields such as aerodynamics, fluid-structure interaction, and biofluid mechanics, paving the way for breakthroughs in performance optimization, design validation, and fundamental fluid mechanics research.
Tomographic High-Speed Particle Image Velocimetry is revolutionizing our understanding of fluid flow dynamics. Its ability to capture intricate details of complex flow phenomena in real-time provides researchers and engineers with a powerful tool to refine simulations, validate models, and enhance the design of various systems. By unveiling the underlying mechanisms driving fluid behavior, THSPIV empowers industries to optimize performance, improve efficiency, and drive innovation.
Our tomographic system which was built by Lavision GMBH employs four phantom V2640 high speed cameras with a photonics industries DMX532-100DH laser to capture flows at speeds of up to 40 kHz. We are using the system to study the flow in pipes as well as around solid bodies that move in the flow.
Tomographic setup used to measure the flow in a pipe of various geometries.
Tomographic imaging setup used to study the flow of a jet in water
Measured flow field in a pipe area reduction (the flow is 6m/s at the narrow side). The image was constructed using particle tracking by STB algorithm
3D flow field measured in a turbulent water jet forming as the flow is being discharged into water at 2m/s