- UCI aeroacoustic facilities
- Helium-air jets: inexpensive and accurate simulation of hot jets
The flows are generated in a dual-stream jet facility capable of supplying mixtures of helium and air to either stream. Noise data are acquired with a Bruel & Kjaer Model 4138 (1/8") condenser microphone. A movable anechoic chamber is positioned around the jet when noise data are acquired.
| Schematic
of dual-stream jet facility
|
Picture of a coaxial
jet nozzle sandwitched between the lenses of the schlieren system
|
| Cutaway
of anechoic chamber |
External view of
anechois chamber. It is movable on wheels.
|
Assortment of various jet and coflow nozzles
And our first attempt at creating an arcuate nozzle; ugly but effective.
