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Published January 2012 | Published
Book Section - Chapter Open

Design and Demonstration of a New Small-Scale Jet Noise Experiment


A facility capable of acoustic and velocity field measurements of high-speed jets has recently been built and tested. The anechoic chamber that houses the jet has a 2.1 m × 2.3 m × 2.5 m wedge tip to wedge tip working volume. We aim to demonstrate that useful experiments can be performed in such a relatively small facility for a substantially lower cost than in larger facility. Rapid prototyping allows for quick manufacturing of both simple and complex geometry nozzles. Sideline and 30° downstream acoustic measurements between 400 Hz and 100 kHz agree well with accepted results. Likewise, nozzle exit-plane data obtained using particle image velocimetry are in good agreement with other studies.

Additional Information

© 2012 by Ryan A. Fontaine. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. AIAA 2012-0682. This work was funded through Gulfstream Aerospace Corporation and Rolls-Royce (SRA 2008-03199). The authors thank Shweta Sharma for her work on the preliminary design of the facility, Bill Flaherty, Andrew Knisely, and Andrew Swantek for their help during the chamber construction phase, Dr. James Bridges, Dr. Peter Jordan, and Prof. Mo Samimy for generously sharing of their experience with such facilities as we were developing ours, and Prof. Larry Ukeiley for providing raw data for Figure 12.

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