A Large Matched Index of Refraction Flow Facility for Laser Doppler Anemometry and Particle Image Velocimetry Studies Around Complex Geometries

Dr. Hugh M. McIlroy Jr.
Idaho National Laboratory
Physics Group

A description of the large-scale flow tunnel called the Matched Index of Refraction Flow Facility located at the Idaho National Laboratory in Idaho Falls, Idaho will be presented. This facility permits the use of laser systems such as Laser Doppler Velocimetry (LDV) and Particle Image Velocimetry (PIV) to make accurate and non-invasive measurements in and around complex and difficult geometries in flows with relatively high Reynolds numbers and where increased spatial resolution is beneficial. The facility, operation and flow quality is described along with a brief summary of several investigations conducted with the facility.