Flow Characteristics of the University of Florida-REEF Supersonic Wind Tunnel

The University of Florida Research and Engineering Education Facility (REEF) Un-steady Fluid Dynamics Group recently designed and installed a Supersonic Wind Tunnel.The purpose of the facility is to provide supersonic °ow conditions for performing researchon active and passive control techniques of cavity °ows. Research will be conducted usingsurface pressure measurements, Schlieren and planar optical °ow measurement techniquessuch as Particle Image Velocimetry. The initial nozzle was constructed for M=1.4 °ow pro-viding approximately 200s of run time at a stagnation pressure of 137.9kPa. Several staticand stagnation pressure measurements have been recorded including streamwise and span-wise pressure gradients along with bottom and side wall boundary layer proflles. Imagingof the compressible °ow fleld was accomplished using a classical Z-Schlieren arrangementproviding qualitative information of the re°ected Mach waves.