Cover Image

Unsteady velocity measurements taken behind a model helicopter rotor hub in forward flight /

Show other versions (1)

Bibliographic Details
Main Author:	Berry, John D.
Corporate Authors:	Langley Research Center, U.S. Army Aviation and Troop Command
Format:	Government Document Microform Book
Language:	English
Published:	Hampton, Va. : National Aeronautics and Space Administration, Langley Research Center, [1997]
Series:	NASA technical memorandum ; 4738.
Subjects:	Rotors (Helicopters) > Testing. Wind tunnels. Helicopters > Aerodynamics. Velocity measurment. Horizontal flight. Separated flow. Helicopters. Turbulence effects. Velocity distribution. Wind tunnel tests. Aerodynamic configurations. Unsteady flow.
Online Access:	https://purl.fdlp.gov/GPO/LPS60757

Similar Items

Aerodynamic performance of a 0.27-scale model of an AH-64 helicopter with baseline and alternate rotor blade sets /
by: Kelley, Henry L.
Published: (1990)

Low-speed wind-tunnel test of an unpowered high-speed stoppable rotor concept in fixed-wing mode /
by: Lance, Michael B.
Published: (1991)

Unsteady velocity measurements taken behind a model helicopter rotor hub in forward flight /
by: Berry, John D.
Published: (1997)

Performance data from a wind-tunnel test of two main-rotor blade designs for a utility-class helicopter /
by: Singleton, Jeffrey D.
Published: (1990)

Description of the U.S. Army small-scale 2-meter rotor test system /
by: Phelps, Arthur E.
Published: (1987)

Wind-tunnel evaluation of a 21-percent-scale powered model of a prototype advanced scout helicopter /
by: Phelps, Arthur E., et al.
Published: (1985)

An experimental investigation of helicopter rotor hub fairing drag characteristics /
Published: (1989)

Acoustic measurements from a rotor blade-vortex interaction noise experiment in the German-Dutch wind tunnel (DNW) /
by: Martin, R. M. (Ruth McVoy), 1956-
Published: (1988)

Study for prediction of rotor/wake/fuselage interference /
by: Clark, D. R.
Published: (1985)

Analysis of small-scale rotor hover performance data /
by: Kitaplioglu, Cahit
Published: (1990)

Effect of ground and/or ceiling planes on thrust of rotors in hover /
by: Rossow, Vernon J.
Published: (1985)

A novel potential viscous flow coupling technique for computing helicopter flow fields /
by: Summa, J. Michael
Published: (1990)

Wind tunnel tests of rotor blade sections with replications of ice formations accreted in hover /
by: Lee, John D.
Published: (1986)

A wall interference assessment/correction interface measurement system for the NASA-ARC 12-FT PWT : final memorandum report.
Published: (1989)

Calculation of three-dimensional unsteady transonic flows past helicopter blades /
by: Chattot, J. J.
Published: (1980)

Wind-tunnel evaluation of the effect of blade nonstructural mass distribution on helicopter fixed-system loads /
by: Wilbur, Matthew L.
Published: (1998)

A mathematical simulation model of a CH-47B helicopter /
by: Weber, Jeanine M., et al.
Published: (1984)

Modal analysis of UH-60A instrumented rotor blades /
by: Hamade, Karen S.
Published: (1990)

Flow-visualization techniques used at high speed by configuration aerodynamics wind-tunnel-test team /
Published: (2001)

Experimental investigation of unsteady flows at large incidence angles in a linear oscillating cascade /
by: Buffum, Daniel H.
Published: (1996)

Experimental studies of transonic flow field near a longitudinally slotted wind tunnel wall /
by: Everhart, Joel L.
Published: (1994)

Application of laser velocimetry to unsteady flows in large scale high speed tunnels /
by: Owen, F. Kevin
Published: (1983)

A two-dimensional adaptive-wall test section with ventilated walls in the Ames 2- by 2-foot transonic wind tunnel /
by: Schairer, Edward T.
Published: (1989)

Tip vortex and wake characteristics of a counterrotating open rotor /
by: Van Zante, Dale E., et al.
Published: (2012)

Turbulence intensity at inlet of 80- by 120-foot wind tunnel caused by upwind blockage /
by: Salazar, Denise, et al.
Published: (2014)

Study of the integration of wind tunnel and computational methods for aerodynamic configurations /
by: Browne, Lindsay E.
Published: (1989)

Estimation of aircraft nonlinear unsteady parameters from wind tunnel data /
by: Klein, Vladislav, et al.
Published: (1998)

A mathematical model of the UH-60 helicopter /
by: Hilbert, Kathryn B.
Published: (1984)

Initial investigation of the acoustics of a counter-rotating open rotor model with historical baseline blades in a low-speed wind tunnel /
by: Elliott, David M.
Published: (2012)

Correlation of puma airloads : evaluation of CFD prediction methods /
Published: (1989)

Aerodynamic characteristics of three helicopter rotor airfoil sections at Reynolds numbers from model scale to full scale at Mach numbers from 0.35 to 0.90 /
by: Noonan, Kevin W., et al.
Published: (1980)

Theoretical and experimental study of flow-control devices for inlets of indraft wind tunnels /
by: Ross, James C. (James Carl), 1955-
Published: (1989)

Free wake analysis of hover performance using a new influence coefficent method /
Published: (1990)

Correlation of Puma airloads : lifting-line and wake calculation /
Published: (1989)

Aerodynamic measurements on a large splitter plate for the NASA Langley Transonic Dynamics Tunnel /
by: Schuster, D. M. (David M.)
Published: (2001)

Aerodynamic measurements on a large splitter plate for the NASA Langley Transonic Dynamics Tunnel /
by: Schuster, D. M. (David M.)
Published: (2001)

Three-dimensional flow field measurements in a transonic turbine cascade /
by: Giel, P. W.
Published: (1996)

Flow control under low-pressure turbine conditions using pulsed jets : final report /
by: Volino, Ralph John, et al.
Published: (2012)

Application of the wide-field shadowgraph technique to rotor wake visualization /
by: Norman, Tom
Published: (1989)

The effects of structural flap-lag and pitch-lag coupling on soft inplane hingeless rotor stability in hover /
by: Bousman, William G.
Published: (1990)