NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Performance characteristics of a model VTOL lift fan in crossflow.This paper presents a summary of principal results obtained from crossflow tests of a model 15-in.-diam lift fan installed in a wing in the NASA Lewis Research Center, 9 by 15 ft V/STOL Propulsion Wind Tunnel. Tests were run with and without exit louvers over a range of tunnel air speeds, fan speeds, and wing angle of attack. Fan thrust in crossflow was influenced by two principal factors: the effects of inflow distortion on blade-row performance, and changes in fan stage operating point brought about by changes in back pressure ratio. In this particular fan, flow separation on the inlet bellmouth did not appear to be a serious problem for crossflow operation.
Document ID
19730040980
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lieblein, S.
Yuska, J. A.
Diedrich, J. H.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 7, 2013
Publication Date
March 1, 1973
Publication Information
Publication: Journal of Aircraft
Volume: 10
Subject Category
Aerodynamics
Accession Number
73A25782
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available