Accession Number:

ADA076499

Title:

Wavenumber Spectral Measurement of Turbulent Boundary Layer Wall Pressure by Maximum Likelihood Methods.

Descriptive Note:

Final rept.,

Corporate Author:

BINARY SYSTEMS INC SILVER SPRING MD

Personal Author(s):

• Tong,P. S.

Report Date:

1979-04-01

Pagination or Media Count:

44.0

Abstract:

A combined procedure based on conventional and maximum likelihood spectral estimation techniques is proposed for the measurement of turbulent boundary layer pressure fluctuation wavenumber spectrum. It is shown that the mixed procedure is more tolerant to sensor inaccuracies in amplitude, phase or phase center alignment. Author

Descriptors:

• *PROBABILITY
• *TURBULENT BOUNDARY LAYER
• *PRESSURE
• *WALLS
• FREQUENCY
• MODELS
• FINITE ELEMENT ANALYSIS
• COMPARISON
• ESTIMATES
• VARIATIONS
• ACOUSTIC ARRAYS
• VECTOR ANALYSIS
• CORRELATION TECHNIQUES
• SPECTRUM ANALYSIS
• ACOUSTIC DETECTORS

Subject Categories:

• Statistics and Probability
• Acoustic Detection and Detectors
• Fluid Mechanics
• Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE