A transport equation for the intermittency factor is employed to predict the transitional flows in low-pressure turbines. The intermittent behavior of the transitional flows is taken into account and incorporated into computations by modifying the eddy viscosity, , with the intermittency factor, . Turbulent quantities are predicted by using Menter’s two-equation turbulence model (SST). The intermittency factor is obtained from a transport equation model which can produce both the experimentally observed streamwise variation of intermittency and a realistic profile in the cross stream direction. The model had been previously validated against low-pressure turbine experiments with success. In this paper, the model is applied to predictions of three sets of recent low-pressure turbine experiments on the Pack B blade to further validate its predicting capabilities under various flow conditions. Comparisons of computational results with experimental data are provided. Overall, good agreement between the experimental data and computational results is obtained. The new model has been shown to have the capability of accurately predicting transitional flows under a wide range of low-pressure turbine conditions.
Skip Nav Destination
Article navigation
July 2007
Technical Papers
A Computational Fluid Dynamics Study of Transitional Flows in Low-Pressure Turbines Under a Wide Range of Operating Conditions
Y. B. Suzen,
Y. B. Suzen
Assistant Professor
Department of Mechanical Engineering and Applied Mechanics,
North Dakota State University
, Fargo, ND 58105
Search for other works by this author on:
P. G. Huang,
P. G. Huang
Professor and Chair
Mechanical and Materials Engineering Department,
Wright State University
, Dayton, OH 45435
Search for other works by this author on:
D. E. Ashpis,
D. E. Ashpis
Aerospace Engineer
Mem. ASME
NASA Glenn Research Center
at Lewis Field, Cleveland, OH 44135
Search for other works by this author on:
R. J. Volino,
R. J. Volino
Associate Professor
Mem. ASME
Department of Mechanical Engineering,
United States Naval Academy
, Annapolis, MD 21402-5042
Search for other works by this author on:
T. C. Corke,
T. C. Corke
Clark Chair Professor
Fellow ASME
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
Search for other works by this author on:
F. O. Thomas,
F. O. Thomas
Professor
Mem. ASME
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
Search for other works by this author on:
J. Huang,
J. Huang
Graduate Assistant
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
Search for other works by this author on:
J. P. Lake,
J. P. Lake
Special Projects Flight Commander,
586th FLTS/DON
, Holloman AFB, NM 88330
Search for other works by this author on:
P. I. King
P. I. King
Professor
Mem. ASME
Department of Aeronautics and Astronautics,
Air Force Institute of Technology
, Wright-Patterson AFB, OH 45433
Search for other works by this author on:
Y. B. Suzen
Assistant Professor
Department of Mechanical Engineering and Applied Mechanics,
North Dakota State University
, Fargo, ND 58105
P. G. Huang
Professor and Chair
Mechanical and Materials Engineering Department,
Wright State University
, Dayton, OH 45435
D. E. Ashpis
Aerospace Engineer
Mem. ASME
NASA Glenn Research Center
at Lewis Field, Cleveland, OH 44135
R. J. Volino
Associate Professor
Mem. ASME
Department of Mechanical Engineering,
United States Naval Academy
, Annapolis, MD 21402-5042
T. C. Corke
Clark Chair Professor
Fellow ASME
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
F. O. Thomas
Professor
Mem. ASME
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
J. Huang
Graduate Assistant
Department of Aerospace and Mechanical Engineering, Center for Flow Physics and Control,
University of Notre Dame
, Notre Dame, IN 46556
J. P. Lake
Special Projects Flight Commander,
586th FLTS/DON
, Holloman AFB, NM 88330
P. I. King
Professor
Mem. ASME
Department of Aeronautics and Astronautics,
Air Force Institute of Technology
, Wright-Patterson AFB, OH 45433J. Turbomach. Jul 2007, 129(3): 527-541 (15 pages)
Published Online: February 13, 2006
Article history
Received:
February 14, 2004
Revised:
February 13, 2006
Citation
Suzen, Y. B., Huang, P. G., Ashpis, D. E., Volino, R. J., Corke, T. C., Thomas, F. O., Huang, J., Lake, J. P., and King, P. I. (February 13, 2006). "A Computational Fluid Dynamics Study of Transitional Flows in Low-Pressure Turbines Under a Wide Range of Operating Conditions." ASME. J. Turbomach. July 2007; 129(3): 527–541. https://doi.org/10.1115/1.2218888
Download citation file:
Get Email Alerts
Evaluating Thin-Film Thermocouple Performance on Additively Manufactured Turbine Airfoils
J. Turbomach (July 2025)
Related Articles
Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers—Part I: Development of Prediction Methodology
J. Turbomach (July,2011)
Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers—Part II: The Application to a Highly Separated Turbine Blade Cascade Geometry
J. Turbomach (July,2011)
Detailed CFD Analysis of the Steady Flow in a Wells Turbine Under Incipient and Deep Stall Conditions
J. Fluids Eng (July,2009)
Inverse Design of and Experimental Measurements in a Double-Passage Transonic Turbine Cascade Model
J. Turbomach (July,2005)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction
Turbine Aerodynamics: Axial-Flow and Radial-Flow Turbine Design and Analysis
CFD Simulations of a Mixed-flow Pump Using Various Turbulence Models
Mixed-flow Pumps: Modeling, Simulation, and Measurements