Abstract
In this paper an efficient numerical strategy for computational fluid dynamics (CFD) simulation of surge events in a three-shaft engine compression system is presented. Numerical results are compared against measured data and the sources of discrepancies and uncertainties are addressed. It is discovered that the engine bleed system has a major impact in reducing the aerodynamic loading during surge in the core system. To the best knowledge of the authors, this is the first time that such a complex CFD computation is attempted and compared against real engine measured data and will provide valuable information to other CFD users as well as gas turbine manufacturers.
References
1.
Dodds
, J.
, and Vahdati
, M.
, 2015
, “Rotating Stall Observations in a High Speed Compressor–Part I: Experimental Study
,” ASME J. Turbomach.
, 137
(5
), p. 051002
. 2.
Dodds
, J.
, and Vahdati
, M.
, 2015
, “Rotating Stall Observations in a High Speed Compressor–Part II: Numerical Study
,” ASME J. Turbomach.
, 137
(5
), p. 051003
. 3.
Crevel
, F.
, Gourdain
, N.
, and Ottavy
, X.
, 2014
, “Numerical Simulation of Aerodynamic Instabilities in a Multistage High-Speed High-Pressure Compressor on Its Test Rig–Part II: Deep Surge
,” ASME J. Turbomach.
, 136
(10
), p. 101004
.4.
Giersch
, T.
, Figaschewsky
, F.
, Hönisch
, P.
, Kühhorn
, A.
, and Schrape
, S.
, 2014
, “Numerical Analysis and Validation of the Rotor Blade Vibration Response Induced by High Pressure Compressor Deep Surge
,” Proceedings of the ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. Volume 7B: Structures and Dynamics
, Düsseldorf, Germany
, June 16–20
, ASME
, New York
, p. V07BT35A017. 5.
Vahdati
, M.
, Simpson
, G.
, and Imregun
, M.
, 2008
, “Unsteady Flow and Aeroelasticity Behaviour of Aero-Engine Core Compressors During Rotating Stall and Surge
,” ASME. J. Turbomach.
, 130
(3
), p. 031017
. 6.
Moreno
, J.
, Dodds
, J.
, Sheaf
, C.
, Zhao
, F.
, and Vahdati
, M.
, 2021
, “Aerodynamic Loading Considerations of Three-Shaft Engine Compression System During Surge
,” ASME J. Turbomach.
, 143
(12
), p. 121002
. 7.
Zhao
, F.
, Dodds
, J.
, and Vahdati
, M.
, 2018
, “Poststall Behavior of a Multistage High Speed Compressor At Off-Design Conditions
,” ASME J. Turbomach.
, 140
(12
), p. 121002
. 8.
Cumpsty
, N. A.
, 2004
, Compressor Aerodynamics
, Krieger Pub Co
, Malabar, FL
.9.
Day
, I. J.
, 2015
, “Stall, Surge, and 75 Years of Research
,” ASME J. Turbomach.
, 138
(1
), p. 011001
. 10.
Sbardella
, L.
, Sayma
, A. I.
, and Imregun
, M.
, 2000
, “Semi-Structured Meshes for Axial Turbomachinery Blades
,” Int. J. Numer. Methods Fluids
, 32
, pp. 569
–584
. 11.
Moreno
, J.
, Dodds
, J.
, Stapelfeldt
, S. C.
, and Vahdati
, M.
, 2020
, “Deficiencies in the Spalart–Allmaras Turbulence Model for the Prediction of the Stability Boundary in Highly Loaded Compressors
,” ASME J. Turbomach.
, 142
(12
), p. 121012
.12.
Sayma
, A. I.
, Vahdati
, M.
, Sbardella
, L.
, and Imregun
, M.
, 2000
, “Modeling of Three-Dimensional Viscous Compressible Turbomachinery Flows Using Unstructured Hybrid Grids
,” AIAA. J.
, 38
, pp. 945
–954
. 13.
Vahdati
, M.
, Sayma
, A. I.
, Freeman
, C.
, and Imregun
, M.
, 2005
, “On the Use of Atmospheric Boundary Conditions for Axial-flow Compressor Stall Simulations
,” ASME J. Turbomach.
, 127
(2
), pp. 349
–351
. 14.
Mazzawy
, R. S.
, 1980
, “Surge-induced Structural Loads in Gas Turbines
,” J. Eng. Gas. Turbines. Power.
, 102
, pp. 162
–168
. 15.
Zhao
, F.
, Dodds
, J.
, and Vahdati
, M.
, 2021
, “Flow Physics During Surge and Recovery of a Multi-Stage High-Speed Compressor
,” ASME. J. Turbomach
, 143
(6
), p. 061008
. 16.
Marshall
, F. L.
, 1973
, “Prediction of Inlet Duct Overpressures Resulting From Engine Surge
,” J. Aircr.
, 10
, pp. 274
–278
. 17.
Gamache
, R. N.
, and Greitzer
, E. M.
, 1990
, “Reverse Flow in Multistage Axial Compressors
,” J. Propul. Power.
, 6
, pp. 461
–473
. 18.
Choi
, M.
, Smith
, N. H. S.
, and Vahdati
, M.
, 2012
, “Validation of Numerical Simulation for Rotating Stall in a Transonic Fan
,” ASME J. Turbomach.
, 135
(2
), p. 021004
. 19.
Stapelfeldt
, S.
, and Vahdati
, M.
, 2019
, “Improving the Flutter Margin of an Unstable Fan Blade
,” ASME J. Turbomach.
, 141
(7
), p. 071006
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