History of the Technique
Applications
Features of ILA High-Speed PIV Systems
Specifying your High-Speed PIV System
ILA High-Speed PIV System in Action, with Phantom V5 1K x 1K CMOS camera
High-speed PIV, a.k.a. Time-Resolved PIV, is not a new experimental technique. For many years, Copper vapour laser and high-speed drum cameras have been used to capture detailed temporal flow field information, either for flow visualisation or for quantitative analysis such as PIV. The process was time-consuming, inflexible and cumbersome but produced valuable time-resolved flow information.
Today, high frame rate, high resolution digital cameras and high repetition rate solid state Lasers have much simplified the implementation of high-speed PIV, improved its flexibility and drastically reduced experiment-to-result time. The latest cameras use CMOS sensors which allow much higher resolutions than the older CCD types at high frame rates (5 kHz and above at full resolution, up to 60 kHz at part-resolution).
PIV Image of Fan Exhaust, 10kHz, 256 x 256
High-speed PIV is a valuable investigative tool where a detailed insight is needed in the temporal behaviour of transient or unsteady flows. Important areas of application of the technique include:
- Study of turbulence
- Sprays
- Mixing phenomena
- Aeroacoustics
- Unsteady flows in aero- and hydrodynamic studies
Follow this link to download a PIV animation of the air flow in a free jet (File size: 29MB). The image sequence is captured using a Photron APX RS camera. The pulsed Laser source is a Darwin Duo (2 x 32mJ @ 1kHz).
Vector map generated from PIV image series above PIV , Fan Exhaust, 10kHz, 256 x 256
- Virtually any combination of high repetition rate, single and double pulse, Lasers and high-speed, high sensitivity cameras
- Common timing hardware and software control platform for all ILA PIV systems, whether high-speed or conventional : users can add high-speed functionalities to their existing ILA system
- Systems available in 2D planar or 3D-stereoscopic configuration
- Powerful project-based VidPIV software with built-in management tools for large image datasets
- Comprehensive ensemble statistics for the study of turbulence
- Large range of performance and price options, including also intermediate frame rate camera systems in the range of 100Hz to 1kHz
- Direct technical support at all stages of your work by our PIV application specialists
Specifying your High-Speed PIV System
We support a range of Laser source / camera combinations depending on your application requirements. Please contact an ILA application specialist for assistance in specifying your system. For more information and relevant datasheets, please go to our Download area.