Mach Wave Elimination
A new method for quieting high-speed jets
(U.S. Patents 5590520 and 5916127)
FACILITIES AT U.C. IRVINE
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.
Assortment of various jet and coflow nozzles
And our first attempt at creating an arcuate nozzle; ugly but effective.
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