NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fluctuating pressures on fan blades of a turbofan engine, flight test investigationMiniature pressure transducers were used to measure the fluctuating pressure on the fan blades of a JT15D engine in flight to aid in understanding fan-noise generation. Although the blade pressures can be considered very useful in determining far-field noise sources in the subsonic fan-blade tip speeds, other mechanisms, and as shock waves in the transonic and supersonic fan-blade tip speeds, limit their usefulness in these higher speed ranges.
Document ID
19850011480
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Schoenster, J. A.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 5, 2013
Publication Date
February 1, 1985
Subject Category
Acoustics
Report/Patent Number
NASA-TP-2381
NAS 1.60:2381
L-15700
Accession Number
85N19790
Funding Number(s)
PROJECT: RTOP 505-31-33
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available