Computational fluid dynamics (CFD) prediction of the unsteady aerothermal interaction in the HP turbine stage, with inlet temperature nonuniformity, requires appropriate unsteady modeling and a low diffusive numerical scheme coupled with suitable turbulence models. This maybe referred to as high fidelity CFD. A numerical study has been conducted by the University of Florence in collaboration with ONERA to compare capabilities and limitations of their CFD codes for such flows. The test vehicle used for the investigation is a turbine stage of three-dimensional design from the QinetiQ turbine facility known as MT1. This stage is a high pressure transonic stage that has an unshrouded rotor, configured, and uncooled with 32 stators and 60 rotor blades. Two different CFD solvers are compared that use different unsteady treatments of the interaction. A reduced count ratio technique has been used by the University of Florence with its code HYBFLOW, while a phase lag model has been used by ONERA in their code, ELSA. Four different inlet conditions have been simulated and compared with focus on the experimental values provided by QinetiQ in the frame of TATEF and TATEF2 EU Sixth Framework Projects. The differences in terms of performance parameters and hot fluid redistribution, as well as the time- and pitch-averaged radial distributions on a plane downstream of the rotor blade, have been underlined. Special attention was given to the predictions of rotor blade unsteady pressure and heat transfer rates.
Skip Nav Destination
Article navigation
July 2011
Research Papers
Aerothermal Study of the Unsteady Flow Field in a Transonic Gas Turbine With Inlet Temperature Distortions
S. Salvadori,
S. Salvadori
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
Search for other works by this author on:
F. Montomoli,
F. Montomoli
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
Search for other works by this author on:
F. Martelli,
F. Martelli
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
Search for other works by this author on:
P. Adami,
P. Adami
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
Search for other works by this author on:
K. S. Chana,
K. S. Chana
QinetiQ
, Cody Technology Park, Ively Road, Farnborough, Hants GU14 0LX, UK
Search for other works by this author on:
L. Castillon
L. Castillon
Department of Applied Aerodynamic,
ONERA
, 8 rue des Vertugadins, F-92190 Meudon, France
Search for other works by this author on:
S. Salvadori
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
F. Montomoli
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
F. Martelli
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
P. Adami
Dipartimento di Energetica,
Università degli Studi di Firenze
, via di Santa Marta 3, 50139 Firenze, Italy
K. S. Chana
QinetiQ
, Cody Technology Park, Ively Road, Farnborough, Hants GU14 0LX, UK
L. Castillon
Department of Applied Aerodynamic,
ONERA
, 8 rue des Vertugadins, F-92190 Meudon, FranceJ. Turbomach. Jul 2011, 133(3): 031030 (13 pages)
Published Online: February 28, 2011
Article history
Received:
December 29, 2009
Revised:
January 12, 2010
Online:
February 28, 2011
Published:
February 28, 2011
Citation
Salvadori, S., Montomoli, F., Martelli, F., Adami, P., Chana, K. S., and Castillon, L. (February 28, 2011). "Aerothermal Study of the Unsteady Flow Field in a Transonic Gas Turbine With Inlet Temperature Distortions." ASME. J. Turbomach. July 2011; 133(3): 031030. https://doi.org/10.1115/1.4002421
Download citation file:
Get Email Alerts
The Cooling Effect of Combustor Exit Louver Scheme on a Transonic Nozzle Guide Vane Endwall
J. Turbomach (July 2025)
Aerodynamic Performance Evaluation of Subsonic Compressor Cascade Blade With Leading-Edge Damage
J. Turbomach (July 2025)
Thermohydraulic Performance and Flow Structures of Diamond Pyramid Arrays
J. Turbomach (July 2025)
Related Articles
Effects of Inlet Temperature Uniformity and Nonuniformity on the Tip Leakage Flow and Rotor Blade Tip and Casing Heat Transfer Characteristics
J. Turbomach (March,2012)
Influence of Stator-Rotor Interaction on the Aerothermal Performance of Recess Blade Tips
J. Turbomach (January,2011)
Redesign of a Low Speed Turbine Stage Using a New Viscous Inverse Design Method
J. Turbomach (January,2011)
Related Proceedings Papers
Related Chapters
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
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