High resolution wake capturing methodology for improved rotor aerodynamic computations

Annual Forum Proceedings - AHS International

Volumn 2, Issue , 2005, Pages 1398-1419

  Duraisamy, Karthikeyan ^a   Sitaraman, Jayanarayanan ^a   Baeder, James D ^a  

^a UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

HELICOPTER ROTOR BLADES; SURFACE PRESSURE DISTRIBUTIONS; VORTEX WAKE;

COMPUTATION THEORY; ROTORS; TURBOMACHINE BLADES; WAKES;

AERODYNAMICS;

EID: 33644672403     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (37)

1. Beddoes, T.S., "A Wake Model for High Resolution Airloads," International Conference on Rotorcraft Basic Research, February 1985.
2. Egolf, T.A., "Helicopter Free Wake Prediction of Complex Wake Structures Under Blade-Vortex Interaction Operating Conditions," Proceedings of the 44th American Helicopter Society Annual Forum, Washington DC, June 1998.
3. Quackenbush, T., Wachpress, D. and Boschitsch, A., "Computation of Rotor Aerodynamic Loads with a Constant Vorticity Contour Free Wake Model, " AIAA Applied Aerodynamics Conference, Baltimore, MD, 1991.
4. Bhagwat, M., "Mathematical Modeling Of The Transient Dynamics Of Helicopter Rotor Wakes Using A Time-Accurate Free-Vortex Method," PhD dissertation, University of Maryland at College Park, MD, 2001.
5. Bagai, A., "Contributions to the Mathematical Modeling of Rotor-Flow-Fields Using Pseudo-Implicit Free Wake Analysis," PhD dissertation, University of Maryland at College Park, MD, 1995.
6. Steinhoff, J. and Ramachandran, K., "Free-Wake Analysis of Compressible Rotor Flows," AIAA Journal, Vol. 28, No. 3, 1990, pp. 427-431.
7. Tang, L., "Improved Euler Simulation of Helicopter Vortical Flows," PhD Dissertation, University of Maryland at College Park, MD, 1998.
8. Khanna, H. and Baeder, J. D., "Coupled Free-Wake/CFD Solutions For Rotors in Hover Using A Field Velocity Approach," Proc. 52nd Annual Forum of the American Helicopter Society, Washington D.C. 1996.
9. Sitaraman, J., Baeder J., D. and Chopra, I., "Validation of UH-60 Rotor Blade Aerodynamic Characteristics Using CFD," Proc. 59th Annual Forum of the American Helicopter Society, Phoenix, 2003.
10. Berkman, E. M., Sankar, L. N., Berezin, C. R. and Torok, M. S., "A Navier-Stokes/Full Potential/Free Wake Method For Advancing Multi-Bladed Rotors," Proc. 53rd Annual Forum of the American Helicopter Society, Virginia Beach, 1997.
11. Beaumier, P., Pahlke, K. and Celli, E., "Navier-Stokes Prediction of Helicopter Rotor Performance in Hover Including Aero-Elastic Effects", Proc. 56th Annual Forum of the American Helicopter Society, Virginia Beach, 1999.
12. Strawn, R.C. and Djomehri, M.J., "Computational Modeling of Hovering Rotor and Wake Aerodynaics," American Helicopter Society 57th Annual Forum, Washington DC, May 2001.
13. Bousman, W. G., "Putting the Aero Back Into Aeroelasticity," Proc. 8th ARO Workshop on Aeroelasticity of Rotorcraft Systems, University Park, PA, 1999.
14. Datta, A., Sitaraman, J., Baeder, J.D., Chopra, I., "Improved Comprehensive Analysis For Prediction of Vibratory Loads in High Speed Forward Flight," Proc. 60th Annual Forum of the American Helicopter Society, Baltimore, 2004.
15. Sitaraman, J. and Baeder J., D., "On the Field Velocity Approach and Geometric Conservation Law for Unsteady Flow Simulations," AIAA paper 2003-3835, 2003.
16. Potsdam, M., Yeo, H. and Johnson, W., "Rotor Airloads Prediction using Loose Aerodynamic/Structural Coupling," Proc. 60th Annual Forum of the American Helicopter Society, Baltimore, 2004.
17. Duraisamy, K. and Baeder, J., "Control of Helicopter Rotor Tip Vortex Structure using Blowing Devices," Proc. 60th Annual Forum of the American Helicopter Society, Baltimore, 2004.
18. Caradonna, EX., and Tung, C., "Experimental and Analytical Studies of a Model Helicopter Rotor in Hover," NASA Technical Memorandum 81232, 1981.
19. Martin, P.B., Pugliese, G.J., and Leishman, J.G., "High Resolution Vortex Measurements in the Wake of a Hovering Rotor," Proc. 59th Annual Forum of the American Helicopter Society, 2001.
20. Srinivasan, G.R., and Baeder, J.D., "TURNS: A Free-wake Euler/ Navier-Stokes Numerical Method for Helicopter Rotors," AIAA Journal, 31(5), 1993.
21. Shu, C-W., "Essentially Non-oscillatory and Weighted Essentially Non-oscillatory Schemes for Hyperbolic Conservation Laws", ICASE Rep. 97-65, 1997.
22. Spalart, P.R., and Allmaras, S.R., "A One-equation Turbulence Model for Aerodynamic Flows," AIAA Paper 92-0439, 1992.
23. Devenport, W.J., Rife, M.C., Liapis, S.I., and Follin, G.J., "The Structure and Development of a Wing-tip Vortex," Journal of Fluid Mechanics, 312, 1996.
24. Chow, J.S., Zilliac, G.G., and Bradshaw, P., "Mean and Turbulence Measurements in the Near Field of a Wingtip Vortex," AIAA Journal, 35(10), 1997.
25. Jacquin, L., and Pantano, C., "On the Persistence of Trailing Vortices," Journal of Fluid Mechanics, 471, 2002.
26. Jakirlic, S., Hanjalic, K. and Tropea, C., "Modeling Rotating and Swirling Turbulent Flows: A Perpetual Challenge," AIM Journal, 40(10), 2002.
27. Dacles-Mariani, J., Chow, S.S., Zilliac, G.G., and Bradshaw, P., "Numerical/Experimental Study of a Wingtip Vortex in a Near Field," AIAA Journal, 33(9), 1995.
28. Martin, P.B., "Measurements of the Trailing Vortex Formation, Structure and Evolution in the Wake of a Hovering Rotor," PhD. thesis, Department of Aerospace Engineering, University of Maryland, 2001.
29. AL Heyes, A., Jones, R., and Smith, D., "Wandering of Wing Tip Vortices," Proc. 12th International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, 2004.
30. Hariharan, N. and Sankar, L., "High-Order Essentially Nonoscillatory Schemes for Rotary-Wing Wake Computations,", Journal of Aircraft, Vol. 41, No. 2, 2004.
31. Usta, E.,"Application of a Symmetric Total Variation Diminishing Scheme To Aerodynamics of Rotors," Ph.D. Dissertation, Department of Aerospace Engineering, Georgia Institute of Technology, 2002.
32. Dubief, Y., and Delcayre, F., "On Coherent-vortex Identifi cation in Turbulence," Journal of Turbulence, Vol. 1, 2001.
33. Caradonna, F.X. and Tung, C., "Experimental and Analytical Studies of a Model Helicopter Rotor in Hover," NASA TM 81232, Sept 1981.
34. Martin, P.B., and Leishman, J.G., "Trailing Vortex Measurements in the Wake of a Hovering Rotor Blade with Various Tip Shapes," Proc. 58th Annual Forum of the American Helicopter Society, 2002.
35. Bousman, W.G., "UH-60A Database," 4th NRTC/RITA Rotorcraft Airloads Workshop, Phoenix, Arizona, Feb 27-28, 2003.
36. Datta, A. and Chopra, I., "Validation and Understanding of UH-60A Vibratory Loads in Steady Level Flight," 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 2001.
37. Bir, G. and Chopra, I., "University of Maryland Advanced Rotorcraft Code (UMARC) Manual," University of Maryland, College Park, 1995.