Performance measurement and wake characteristics of a model rotor in axial flight

Journal of the American Helicopter Society

Volumn 44, Issue 2, 1999, Pages 101-108

  Caradonna, F ^b   Henley, E ^b   Silva, M ^b   Huang, S ^b   Komerath, N ^a   Mahalingam, R ^a   Reddy, U ^a   Funk, R ^a   Wong, O ^a   Ames, R ^a   Darden, L ^a   Villareal, L ^a   Gregory, J ^a  

^a Georgia Institute of Technology   (United States)

^b NONE

Author keywords

[No Author keywords available]

Indexed keywords

FLIGHT DYNAMICS; SPEED; VORTEX FLOW; WAKES;

AXIAL FLIGHT; MODEL ROTOR; PERFORMANCE MEASUREMENT;

HELICOPTER ROTORS;

EID: 0033116736     PISSN: 00028711     EISSN: None     Source Type: Journal    
DOI: 10.4050/jahs.44.101     Document Type: Article

References (16)

1. Shinoda, P. and Johnson, W., "Performance Results from a Test of an S-76 Rotor in the NASA Ames 80-by 120-Foot Wind Tunnel," AIAA 93-3414, AIAA Applied Aerodynamics Conference, Aug 1993, Monterey, CA.
2. Leishman, J. G. and Bagai, A., "Challenges in Understanding the Vortex Dynamics of Helicopter Rotor Wakes," AIAA Journal, Vol. 30, (7), Jul 1998, pp. 1130-1140.
3. Piziali, R. and Felker, F., "Reduction of Unsteady Recirculation in Hovering Model Helicopter Rotor Testing," Journal of the American Helicopter Society, Vol. 32, (1), Jan 1987, pp. 54-59.
4. Moedersheim, E., Daghir, M., and Leishman, J. G., "Flow Visualization of Rotor Wakes Using Shadowgraph and Schlieren Techniques," Paper 31, Twentieth European Rotorcraft Forum, Amsterdam, The Netherlands, Oct 1994.
5. Stepniewski, W. Z. and Keys, C. N. Rotary-Wing Aerodynamics, 1984, Dover.
6. Gray, R. B. and Brown, G. W., "A Vortex Wake Analysis of a Single-Bladed Hovering Rotor and a Comparison with Experimental Data," AGARD-CP-111, Sep 1972.
7. Samant, S. S. and Gray, R. B., "A Semi-Empirical Correction for the Vortex Core Effect on Hovering Rotor Wake Geometries," Preprint No. 77.33-02, American Helicopter Society 33rd Annual National Forum, Washington, D.C., May 1977.
8. Thompson, T. L., Komerath, N. M., and Gray, R. B., "Visualization and Measurement of the Tip Vortex Core of a Rotor Blade in Hover," Journal of Aircraft, Vol. 25, (12), Dec 1988, pp. 1113-1121.
9. Komerath, N. M., Liou, S-G., and Hyun, J-S., "Flowfield of a Swept Blade Tip at High Pitch Angles," AIAA 91-0704, Aerospace Sciences Meeting, Jan 1991.
10. Tung, C., Yu, Y., and Low, S., "The Aerodynamic Aspect of Blade/ Vortex Interaction (BVI)," AIAA 96-2010, Applied Aerodynamics Conference, New Orleans, LA, Jun 1996.
11. Liou, S. G., Komerath, N. M., and McMahon, H. M., "Measurement of Transient Vortex-Surface Interaction Phenomena," AIAA Journal, Vol. 28, (6), Jun 1990, pp. 975-981.
12. Mahalingam, R. and Komerath, N. M., "Rotor Tip-Vortex/Airframe Collision Effects on the Vortex and Airframe," AIAA 96-2013, Applied Aerodynamics Conference, New Orleans, LA, Jun 1996.
13. Jain, R., Conlisk, A. T., Mahalingam, R., and Komerath N. M., "Interaction of Tip-Vortices in the Wake of a Two-Bladed Rotor," AHS International 54th Annual Forum Proceedings, Washington, D.C., May 1998.
14. Schlichting, H., Boundary Layer Theory, 6th Edition, McGraw-Hill.
15. Rossow, V. J., "Wake-Vortex Separation Distances When Flight-Path Corridors Are Constrained," Journal of Aircraft, Vol. 33, (3), Washington, DC, May 1998, pp. 539-546.
16. Mueller, R., "Special Vortices at a Helicopter Rotor Blade," Journal of The American Helicopter Society, Vol. 35, (4), Oct 1990, pp. 16-22.