A PIV System for Time-Resolved Measurements at High Reynolds Numbers in the National Diagnostic Facility.
Abstract
The necessary equipment for a two camera DPIV system was purchased. It included two cameras, two frame grabbers, a PC based computer, a laser and shutter, optics for the camera, optics for the laser, a workstation for computational processing, and control and signal conditioning electronics. A unique feature of this system is the utilization of special cameras which allow externally synchronized acquisition of two frames separated by only 1- 5 microns, permitting cross-correlation PIV analysis for flows up to 250 m/s. The DPIV system has been put together and tested in the Mark V Morkovin wind tunnel at IIT. Comparison between the statistics of the resulting velocity field and earlier hot-wire measurements in the same wind tunnel reveals the ability of the new DPIV system to provide high spatial resolution measurements with high accuracy. The new system is currently being adapted for use in the National Diagnostic Facility (NDF) at IIT.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1997
- Accession Number
- ADA330735
Entities
People
- Ahmed Naguib
- Candace Wark
- Drazen Fabris
- Hassan Nagib
Organizations
- Illinois Institute of Technology