Flow and heat transfer in an aero-engine compressor disk cavity with radial inflow has been studied using computational fluid dynamics (CFD), large eddy simulation (LES), and coupled fluid/solid modeling. Standalone CFD investigations were conducted using a set of popular turbulence models along with 0.2 deg axisymmetric and a 22.5 deg discrete sector CFD models. The overall agreement between the CFD predictions is good, and solutions are comparable to an established integral method solution in the major part of the cavity. The LES simulation demonstrates that flow unsteadiness in the cavity due to the unstable thermal stratification is largely suppressed by the radial inflow. Steady flow CFD modeling using the axisymmetric sector model and the Spalart–Allmaras turbulence model was coupled with a finite element (FE) thermal model of the rotating cavity. Good agreement was obtained between the coupled solution and rig test data in terms of metal temperature. Analysis confirms that using a small radial bleed flow in compressor cavities is effective in reducing thermal response times for the compressor disks and that this could be applied in management of compressor blade clearance.
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March 2016
Research-Article
Coupled Aerothermal Modeling of a Rotating Cavity With Radial Inflow
Zixiang Sun,
Zixiang Sun
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: Zixiang.Sun@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: Zixiang.Sun@surrey.ac.uk
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Dario Amirante,
Dario Amirante
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: D.Amirante@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: D.Amirante@surrey.ac.uk
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John W. Chew,
John W. Chew
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: J.Chew@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: J.Chew@surrey.ac.uk
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Nicholas J. Hills
Nicholas J. Hills
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: N.Hills@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: N.Hills@surrey.ac.uk
Search for other works by this author on:
Zixiang Sun
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: Zixiang.Sun@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: Zixiang.Sun@surrey.ac.uk
Dario Amirante
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: D.Amirante@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: D.Amirante@surrey.ac.uk
John W. Chew
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: J.Chew@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: J.Chew@surrey.ac.uk
Nicholas J. Hills
Thermo-Fluid Systems UTC,
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: N.Hills@surrey.ac.uk
Faculty of Engineering and Physical Sciences,
University of Surrey,
Guildford, Surrey GU2 7XH, UK
e-mail: N.Hills@surrey.ac.uk
1Corresponding author.
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 14, 2015; final manuscript received July 31, 2015; published online October 6, 2015. Editor: David Wisler.
J. Eng. Gas Turbines Power. Mar 2016, 138(3): 032505 (11 pages)
Published Online: October 6, 2015
Article history
Received:
July 14, 2015
Revised:
July 31, 2015
Citation
Sun, Z., Amirante, D., Chew, J. W., and Hills, N. J. (October 6, 2015). "Coupled Aerothermal Modeling of a Rotating Cavity With Radial Inflow." ASME. J. Eng. Gas Turbines Power. March 2016; 138(3): 032505. https://doi.org/10.1115/1.4031387
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