Hover performance correlation for full-scale and model-scale coaxial rotors

Annual Forum Proceedings - AHS International

Volumn 2, Issue , 2007, Pages 1407-1425

  Lim, Joon W ^a   McAlister, Kenneth W ^a   Johnson, Wayne ^a  

^a NASA AMES RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIRFOIL DESIGN; FREE-VORTEX WAKE; PERFORMANCE CORRELATION; PERFORMANCE DATA; PERFORMANCE PREDICTION; ROTOR DIAMETER; SCALING EFFECTS; WAKE INTERFERENCES;

GROUND EFFECT;

REYNOLDS NUMBER;

EID: 84884372669     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (23)

1. Hirschberg, M., "Sikorsky Pushes Forward with X2 Technology Demonstrator," Vertiflite, Vol. 51, No. 3, fall 2005, p. 12.
2. Preator, R., Leishman, J. G., and Baldwin, G. D., "Performance and Trade Studies of Mono Tiltrotor Design," Proceedings of the 61st Annual Forum of the American Helicopter Society International, Grapevine, TX, June 1-3, 2005.
3. Chaney, M. C., "The ABC Helicopter," Journal of the American Helicopter Society, 14, (4), pp. 10-19, 1969.
4. Arents, D. N., "An Assessment of the Hover Performance of the XH-59A Advancing Blade Concept Demonstration Helicopter," Report USAAMRDL-TN-25, Eustis Directorate, USAAMRDL, Fort Eustis, Virginia, May 1977.
5. Coleman, C. P., "A Survey of Theoretical and Experimental Coaxial Rotor Aerodynamic Research," NASA TP 3675, 1997.
6. Leishman, J. G., and Anathan, S., "Aerodynamic Optimization of a Coaxial Proprotor," Proceedings of the 62nd Annual Forum of the American Helicopter Society, Phoenix, Arizona, May 2006.
7. McAlister, K. W., Tung, C., Rand, O., Khromov, V., and Wilson, J. S., "Experimental and Numerical Study of a Model Coaxial Rotor," Proceedings of the 62nd Annual Forum of the American Helicopter Society, Phoenix, Arizona, May 2006.
8. Harrington, R. D., "Full-Scale-Tunnel Investigation of the Static-Thrust Performance of a Coaxial Helicopter Rotor," NACA TN 2318, 1951.
9. Johnson, W. R., "CAMARD II, Vol II: Components Theory," Release 4.5, Johnson Aeronautics, Palo Alto, CA, 2006.
10. Leishman, J. G., Principles of Helicopter Aerodynamics, Cambridge University Press, New York, 2000.
11. Squire, H. B., "The Growth of a Vortex in Turbulent Flow," Aeronautical Quarterly, Vol. 16, August 1965, pp. 302-306.
12. Martin, P. B., "Measurement of the Trailing Vortex Formation, Structure, And Evolution in the Wake of a Hovering Rotor," Ph. D. Dissertation, University of Maryland, College park, Maryland, 2001.
13. Bhagwat, M. J, "Transient Dynamics of Helicopter Rotor Wakes using a Time-Accurate Free-Vortex Method," Ph. D. Dissertation, University of Maryland, College park, Maryland, 2001.
14. Leishman, J. G., and Bagai, A., "Challenges in Understanding the Vortex Dynamics of Helicopter RotorWakes," AIAA Journal, Vol. 36, No. 7, July 1998.
15. Felker, F. F., Betzina, M. D., and Signor, D. B., "Performance and Loads Data from a Hover Test of a Full-Scale XV-15 Rotor," NASA TM 86833, 1985.
16. Yamauchi, G. K., and Johnson, W. "Trends of Reynolds Number Effects on Two-Dimensional Airfoil Characteristics for Helicopter Rotor Analyses," NASA TM 84363, April 1983.
17. Drela, M., "A User's Guide to MSES 2.95," MIT Computational Aerospace Sciences Laboratory, September 1996.
18. Greer, D., Hamory, P., Krake, K., and Drela, M., "Design and Prediction for a High-Altitude (Low-Reynolds Number) Aerodynamic Flight Experiment," NASA TM-1999-206579, July 1999.
19. Selig, M. S., Donovan, J. F., Fraser, D. B., "Airfoils at Low Speeds," H. A. Stokely Publishing, Virginia Beach, Virginia, 1989.
20. Corrigan, J.J., and Schillings, J. J., "Empirical Model for Stall Delay Due to Rotation," American Helicopter Society Aeromechanics Specialists Conference, San Francisco, California, January 1994.
21. Du, Z., and Selig, M. S., "A 3-D Stall-Delay Model for Horizontal Axis Wind Turbine Performance Prediction," AIAA Paper 98-0021, January 1998.
22. Griffiths, D. A., and Leishman, J. G, "A Study of Dual-Rotor Interference and Ground Effect using a Free-Vortex Wake Model," Proceedings of the 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 2002.
23. Light, J. S., "Tip Vortex Geometry of a Hovering Helicopter Rotor in Ground Effect," Proceedings of the 45th annual Forum of the American Helicopter Society, Boston, Massachusetts, May 1989.