Separated flow transition mechanism and prediction with high and low freestream turbulence under low pressure turbine conditions

Proceedings of the ASME Turbo Expo 2004

Volumn 4, Issue , 2004, Pages 45-55

  Volino, Ralph J ^a   Bohl, Douglas G ^a  

^a UNITED STATES NAVAL ACADEMY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIRFOILS; BOUNDARY LAYERS; FLUID DYNAMICS; REYNOLDS NUMBER; TURBULENCE; WAKES;

PRESSURE GRADIENTS; SUCTION CONTROL; TURBULENT EDDIES;

TURBINES;

EID: 10244241847     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1115/gt2004-53360     Document Type: Conference Paper

References (19)

1. Hourmouziadis, J., 1989, "Aerodynamic Design of Low Pressure Turbines," AGARD Lecture Series 167.
2. Mayle, R.E., 1991, "The Role of Laminar-Turbulent Transition in Gas Turbine Engines," ASME Journal of Turbomachinery, 113, pp. 509-537.
3. Sharma, O.P., Ni, R.H., and Tanrikut, S., 1994, "Unsteady Flow in Turbines," AGARD Lecture Series 195, Paper No. 5.
4. Bons, J.P., Sondergaard, R., and Rivir, R.B., 2001, "Turbine Separation Control Using Pulsed Vortex Generator Jets," ASME Journal of Turbomachinery, 123, pp. 198-206.
5. Volino, R.J., and Hultgren, L.S., 2001, "Measurements in Separated and Transitional Boundary Layers Under Low-Pressure Turbine Airfoil Conditions," ASME Journal of Turbomachinery, 123, pp. 189-197.
6. Volino, R.J., 2002, "Separated Flow Transition Under Simulated Low-Pressure Turbine Airfoil Conditions: Part 1 - Mean Flow and Turbulence Statistics," ASME Journal of Turbomachinery, 124. pp. 645-655.
7. Hatman, A., and Wang, T., 1999, "A Prediction Model for Separated Flow Transition," ASME Journal of Turbomachinery, 121, pp. 594-602.
8. Lou, W., and Hourmouziadis, J., 2000, "Separation Bubbles Under Steady and Periodic-Unsteady Main Flow Conditions," ASME Journal of Turbomachinery, 122, pp. 634-643.
9. Volino, R. J., 2002, "Separated Flow Transition under Simulated Low-Pressure Turbine Airfoil Conditions: Part 2 - Turbulence Spectra," ASME Journal of Turbomachinery, 124, pp. 656-664.
10. Hughes, J.D., and Walker, G.J., 2001, "Natural Transition Phenomena on an Axial Compressor Blade," ASME Journal of Turbomachinery, 123, pp. 392-401.
11. Volino, R.J., 2003, "Passive Flow Control on Low-Pressure Turbine Airfoils," ASME Journal of Turbomachinery, 125, pp. 754-764.
12. Roberts, W.B., 1980, "Calculation of Laminar Separation Bubbles and Their Effect on Airfoil Performance," AIAA Journal, 18, pp. 25-31.
13. Davis, R.L., Carter, J.E., and Reshotko, E., 1985, "Analysis of Transitional Separation Bubbles on Infinite Swept Wings," AIAA Paper 85-1685.
14. Volino, R.J., Schultz, M.P., and Pratt, C.M., 2001, "Conditional Sampling in a Transitional Boundary Layer Under High Free-Stream Turbulence Conditions," ASME Journal of Fluids Engineering, 125, pp. 28-37.
15. Ligrani, P.M., and Bradshaw, P., 1987, "Spatial Resolution and Measurement of Turbulence in the Viscous Sublayer Using Subminiature Hot-Wire Probes," Experiments in Fluids, 5, pp. 407-417.
16. Ligrani, P.M., Westphal, R.V., and Lemos, F.R., 1989, "Fabrication and Testing of Subminiature Multi-Sensor Hot-Wire Probes," Journal of Physics E: Scientific Instruments, 22, pp. 262-268.
17. Walker, G.J., 1989, "Transitional Flow on Axial Turbomachine Blading," AIAA Journal, 27, pp. 595-602.
18. Yaras, M.I., 2002, "Measurement of the Effects of Freestream Turbulence on Separation-Bubble Transition," ASME Paper GT-2002-30232.
19. Howell, R.J., 1999, "Wake - Separation Bubble Interactions in Low Reynolds Number Turbomachinery," Ph.D. Thesis, Whittle Laboratory, Cambridge University.