Experimental/numerical evaluation of integral trailing edge flaps for helicopter rotor applications

Journal of the American Helicopter Society

Volumn 50, Issue 1, 2005, Pages 3-17

  Hassan, Ahmed A ^a   Straub, Friedrich K ^a   Noonan, Kevin W ^b  

^a BOEING COMPANY   (United States)

^b NASA LANGLEY RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMICS; AIRFOILS; COMPUTER SIMULATION; DYNAMICS; MATHEMATICAL MODELS; REYNOLDS NUMBER; SUPERSONIC FLOW; WIND TUNNELS;

HINGE MOMENT COEFFICIENT; INTEGRAL TRAILING EDGE FLAPS; MACH NUMBER; TRANSONIC CRYOGENIC TUNNEL;

HELICOPTER ROTORS;

EID: 14044252803     PISSN: 00028711     EISSN: None     Source Type: Journal    
DOI: 10.4050/1.3092838     Document Type: Article

References (12)

1. Charles, B. D., Tadghighi, H., and Hassan, A., "Higher Harmonic Actuation of Trailing Edge Flaps for Rotor BVI Noise Control," American Helicopter Society 52nd Annual Forum Proceedings, June 1996.
2. Hassan, A. A., Charles, B. D., Tadghighi, H., and Sankar, L. N., "Blade-Mounted Trailing Edge Flap Control for BVI Noise Reduction," NASA CR 4426, February 1992.
3. Dawson, S., Marcolini, M., Booth, E., Straub, F., Hassan, A., Tadghighi, H., and Kelly, H., "Wind Tunnel Test of an Active Flap Rotor: BVI Noise and Vibration Reduction," American Helicopter Society 51 st Annual Forum Proceedings, May 1995.
4. Straub, F. K., and Hassan, A. A., "Aeromechanic Considerations in the Design of a Rotor with Smart Material Actuated Trailing Edge Flaps," 52nd Annual AHS Forum Proceedings, Washington, DC, June 1996.
5. Johnson, W., A Comprehensive Analytical Model of Rotorcraft Aerodynamics, and Dynamics - Volume I: Theory Manual, and Volume II: User's Manual, Johnson Aeronautics, Palo Alto, CA, 1988.
6. Hariharan, N., and Leishman, J. G., "Unsteady Aerodynamics of a Flapped Airfoil in Subsonic Flow by Indicial Concepts," Journal of Aircraft Vol. 33, (5), September/October 1996, pp. 855-868.
7. Hoerner, S. F., and Borst, H. V., Fluid Dynamic Lift, Hoerner Fluid Dynamics, Brick Town, NJ, 1975.
8. Gray, R., and Davis, D. E., "Comparison of Experimentally and Theoretically Determined Values of Oscillatory Aerodynamic Control Surface Hinge Moment Coefficients," RAE Technical Report, 72023, March 1972.
9. Ray, E. J., "The NASA Langley 0.3-m Transonic Cryogenic Tunnel, TCT," AGARD-FDP-VKI Special Course, von Karman Institute for Fluid Dynamics, June 1989.
10. Pulliam, T.H., and Steger, J.L., "Recent Improvements in Efficiency, Accuracy and Convergence for Implicit Approximate Factorization Algorithms," AIAA Paper 85-0360, January 1985.
11. Baldwin, B. S., and Lomax, H., "Thin Layer Approximation and Algebraic Model for Separated Turbulent Flow," AIAA Paper 78-0257, January 1978.
12. Cordova, J.Q., and Barth, T.J., "Grid Generation for General 2-D Regions Using Hyperbolic Equations," AIAA Paper 88-0520, January 1988.