NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Near Noise Field of a Jet-engine Exhaust II : Cross Correlation of Sound PressuresPressure cross correlations were obtained over a range of jet velocities both longitudinally and laterally for the overall sound pressure and for several frequency bands. The region of positive correlation was found to increase with distance downstream of the nozzle exit and was greater for lateral than for longitudinal correlations. In general, little change in the correlation curves was found as a function of jet velocity or frequency band width. Measurements made with a fixed and a movable microphone in a plate showed correlations similar to the free-field results. The results are interpreted in terms of pressure loads on surfaces.
Document ID
19930084452
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Callaghan, Edmund E
Howes, Walton L
Coles, Willard D
Date Acquired
August 16, 2013
Publication Date
September 1, 1956
Report/Patent Number
NACA-TN-3764
Accession Number
93R13742
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
LOADS, AERODYNAMIC
ENGINES, TURBOJET
LOADS
NOISE

Related Records

There are no records associated with this record.
No Preview Available