Experiments are performed on a modern design transonic shroudless low-aspect ratio fan blisk that experienced both subsonic/transonic and supersonic stall-side flutter. High-response flush mounted miniature pressure transducers are utilized to measure the unsteady aerodynamic loading distribution in the tip region of the fan for both flutter regimes, with strain gages utilized to measure the vibratory response at incipient and deep flutter operating conditions. Numerical simulations are performed and compared with the benchmark data using an unsteady three-dimensional nonlinear viscous computational fluid dynamic (CFD) analysis, with the effects of tip clearance, vibration amplitude, and the number of time steps-per-cycle investigated. The benchmark data are used to guide the validation of the code and establish best practices that ensure accurate flutter predictions.
Issue Section:
Technical Papers
Keywords:
transonic flow,
subsonic flow,
supersonic flow,
pressure transducers,
aerodynamics,
strain gauges,
gas turbines,
flow simulation,
flow measurement,
vibration measurement,
numerical analysis,
computational fluid dynamics,
benchmark testing,
mechanical engineering computing,
stress analysis,
compressors,
elasticity,
torsion
1.
Jeffers
, II, J. D.
, and Meece
, Jr., C. E.
, 1975
, “F100 Stall Flutter Problem Review and Solution
,” AIAA J. Aircr.
, 12
(4
), pp. 350
–359
.2.
El-Aini, Y. M., Bankhead, H. R. and Meece, C. E., 1986, “Subsonic/Transonic Stall Flutter Investigation of an Advanced Low Pressure Compressor,” ASME Paper No. 86-GT-90.
3.
El-Aini, Y. M., and Capece, V. M., 1995, “Stall Flutter Prediction Techniques for Fan and Compressor Blades,” AIAA Paper No. 95-2652.
4.
Adamcyzk
, J. J.
, Stevans
, W.
, and Jutras
, R.
, 1982
, “Supersonic Stall Flutter of High-Speed Fans
,” ASME J. Eng. Power
, 104
(3
), pp. 675
–682
.5.
Shibata, T., and Kaji S., 1998, “Role of Shock Structures in Transonic Fan Rotor Flutter,” Proceedings of the 8th International Symposium of Unsteady Aerodynamics and Aeroelasticity of Turbnomachines, Kluwer, Dordrecht, The Netherlands, pp. 733–747.
6.
Isomura
, K.
, and Giles
, M. B.
, 1998
, “A Numerical Study of Flutter in a Transonic Fan
,” ASME J. Turbomach.
, 120
, pp. 500
–507
.7.
Silkowski, P. D., Rhie, C. M., Copeland, G. S., Eley, J. A., and Bleeg, J. M., 2001, “CFD Investigation of Aeromechanics,” ASME Paper No. 2001-GT-0267.
8.
Srivastava, R., Bakhle, M. A., Keith Jr., T. G., and Stefko, G. L., 2002, “Flutter Analysis of a Transonic Fan,” ASME Paper No. GT-2002-30319.
9.
Carta
, F. O.
, and St. Hilaire
, A. O.
, 1978
, “Experimentally Determined Stability Parameters of a Subsonic Cascade Oscillating Near Stall
,” ASME J. Eng. Power
, 100
, pp. 111
–120
.10.
Carta
, F. O.
, and St. Hilaire
, A. O.
, 1980
, “Effect of Interblade Phase Angle and Incidence Angle on Cascade Pitching Stability
,” ASME J. Eng. Power
, 102
, pp. 391
–396
.11.
Carta
, F. O.
, 1983
, “Unsteady Aerodynamics and Gapwise Periodicity of Oscillating Cascaded Airfoils
,” ASME J. Eng. Gas Turbines Power
, 105
, pp. 565
–574
.12.
Buffum, D. H., Capece, V. R., King, A. J., and El-Aini, Y. M., 1996, “Experimental Investigation of Unsteady Flows at Large Incidence Angles in a Linear Oscillating Cascade,” AIAA Paper No. 96-2823.
13.
Buffum, D. H., Capece, V. R., King, A. J., and El-Aini, Y. M., 1996, “Oscillating Cascade Aerodynamics at Large Mean Incidence,” ASME Paper No. 96-GT-339.
14.
Hardin, L. W., Carta, F. O., and Verdon, J. M., 1987, “Unsteady Aerodynamic Measurements on a Rotating Blade Row at Low Mach Number,” ASME Paper No. 87-GT-221.
15.
Frey, K. K., and Fleeter, S., 1996, “Oscillating Airfoil Aerodynamics of a Rotating Compressor Blade Row,” AIAA Paper No. 96-2673.
16.
Stargardter, H., 1979, “Subsonic/Transonic Stall Flutter Study,” NASA CR-165256.
17.
Halliwell
, D. G.
, Newton
, S. G.
, and Lit
, K. S.
, 1984
, “A Study of Unsteady Pressures Near the Tip of a Transonic Fan in Unstalled Supersonic Flutter
,” ASME J. Vib., Acoust., Stress, Reliab. Des.
, 106
, pp. 198
–203
.18.
Shabbir, A., and Zhu, J., 1996, “Assessment of Three Turbulence Models in a Compressor Rotor,” ASME Paper No. 96-GT-198.
19.
Bakhle, M. A., Srivastava, R., and Keith Jr., T. G., 1997, “A 3D Euler/Navier-Stokes Aeroelastic Code for Propulsion Applications,” AIAA Paper No. 97-2749.
20.
Bakhle, M. A., Srivastava, R., and Keith Jr., T. G., 1998, “Aeroelastic Calculations Based on Three-Dimensional Euler Analysis,” AIAA Paper No. 98-3295.
21.
Chen, J. P., and Whitfield, D. L., 1993, “Navier-Stokes Calculations for the Unsteady Flowfield of Turbomachinery,” AIAA Paper No. 93-0676.
22.
Srivastava, R., Bakhle, M. A., and Keith Jr., T. G., 1999, “Phase-Lagged Boundary Condition Methods for Aeroelastic Analysis of Turbomachines—A Comparative Study,” ASME Paper No. 99-GT-19.
23.
Adamczyk
, J. J.
, Celestina
, M. L.
, and Greitzer
, E. M.
, 1993
, “The Role of Tip Clearance in High-Speed Fan Stall
,” ASME J. Turbomach.
, 115
, pp. 28
–38
.24.
Chima
, R. V.
, 1998
, “Calculation of Tip Clearance Effects in a Transonic Compressor Rotor
,” ASME J. Turbomach.
, 120
, pp. 131
–140
.25.
Van Zante, D. E., Strazisar, A. J., Wood, J. R., Hathaway, M. D., and Okiishi, T. H., 1999, “Recommendations for Achieving Accurate Numerical Simulation of Tip Clearance Flows in Transonic Compressor Rotors,” ASME Paper No. 99-GT-390.
26.
Feiner, D. M., and Griffin, J. H., 2003, “Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part 1: Theory,” ASME Paper No. GT2003-38952.
27.
Feiner, D. M., and Griffin, J. H., 2003, “Mistuning Identification of Bladed Disks Using a Fundamental Mistuning Model—Part 2: Application,” ASME Paper No. GT2003-38953.
Copyright © 2004
by ASME
You do not currently have access to this content.
