NASA NTRS · 19970027211
Pressure Wave Propagation in a Screech Cycle
Abstract
The screech noise generation process from supersonic under expanded jets, issuing from a sonic nozzle pressure ratio of 2.4 and 3.3 (expanded Mach number, M(sub j) = 1.10 and 1.42), is investigated experimentally. Spark Schlieren visualization at different phases of the screech cycle are clearly shown. The rms pressure fluctuation at the screech frequency is measured in the near field region by a traversing microphone.
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1997-09-25. Pressure Wave Propagation in a Screech Cycle. https://ntrs.nasa.gov/citations/19970027211
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