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Research Papers

A New Approach for Scaling Aspirating Face Seal Aerodynamics

[+] Author and Article Information
Julius Wilhelm

Institut für Thermische Strömungsmaschinen,
Karlsruher Institut für Technologie (KIT),
Kaiserstr. 12,
Karlsruhe D-76131, Germany
e-mail: julius.wilhelm@kit.edu

Corina Schwitzke, Hans-Jörg Bauer

Institut für Thermische Strömungsmaschinen,
Karlsruher Institut für Technologie (KIT),
Kaiserstr. 12,
Karlsruhe D-76131, Germany

Tue Nguyen

GE Aviation Munich,
Freisinger Landstraße 50,
Garching bei München D-85748, Germany

1Corresponding author.

Manuscript received July 6, 2018; final manuscript received August 22, 2018; published online October 4, 2018. Editor: Jerzy T. Sawicki.

J. Eng. Gas Turbines Power 141(3), 031007 (Oct 04, 2018) (6 pages) Paper No: GTP-18-1454; doi: 10.1115/1.4041515 History: Received July 06, 2018; Revised August 22, 2018

In the present paper, an approach for scaling the aerodynamics of advanced seals is presented. Modern advanced seals, such as a self-adaptive gas lubricated face seal, comprise elements that are commonly used in turbomachinery sealing. These are labyrinth seals and mechanical face seals. Parameters influencing the aerodynamical and mechanical behavior of each seals type are known. However, a combined methodology to scale the aerodynamics of the self-adaptive seal which consists of more than one element has not yet been published. The proposed methodology is applied to a model self-adaptive seal, and numerical simulations are performed to prove the validity of the approach. The new methodology ensures the transferability of experimental results at lab scale to engine conditions. Since the new approach allows scaling of self-adaptive seal tests, a new unique test rig will be designed accordingly.

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References

Hwang, M. , Pope, A. , and Shucktis, B. , 1996, “ Advanced Seals for Engine Secondary Flowpath,” J. Propul. Power, 12(4), pp. 794–799. [CrossRef]
Moore, C. , 1968, “ Sealing Means for Axial Flow Compressor Discharge,” U.S. Patent No. US3,383,033 https://patents.google.com/patent/US3383033.
Pope, A. , 1994, “ Gas Bearing Sealing Means,” U.S. Patent No. US5284347 A.
Turnquist, N. , Bagepalli, B. , Reluzco, G. , and Tseng, W. , 1999, “ Rotor and Stator Assembly Configured as an Aspirating Face Seal,” U.S. Patent No. US5,975,537 https://patents.google.com/patent/US5975537.
Brauer, J. , Glynn, C. , Tseng, W. , and Cabe, J. , 2004, “ Seal for a Rotating Member,” U.S. Patent No. 10/194,391.
Wolfe, C. , Bagepalli, B. , Turnquist, N. , Tseng, T. , McNickle, A. , Hwang, M. , and Steinetz, B. , 1996, “ Full-Scale Testing and Analytical Validation of an Aspirating Face Seal,” AIAA Paper No. 96-2802.
Bagepalli, B. , Imam, I. , Wolfe, C. , Tseng, T. , Shapiro, W. , and Steinetz, B. , 1996, “ Dynamic Analysis of an Aspirating Face Seal for Aircraft-Engine Application,” AIAA Paper No. 96-2803.
Turnquist, N. , Bagepalli, B. , Reluzco, G. , Wolfe, C. , Tseng, T. , McNickle, A. , Dierkes, J. , Athavale, M. , and Steinetz, B. , 1997, “ Aspirating Face Seal Modeling and Full Scale Testing,” AIAA Paper No. 97-2631.
Turnquist, N. , Tseng, T. , McNickle, A. , Dierkes, J. , Athavale, M. , and Steinetz, B. , 1997, “ Analysis and Full Scale Testing of an Aspirating Face Seal With Improved Flow Isolation,” AIAA Paper No. 97-2631.
Turnquist, N. , Tseng, T. , McNickle, A. , and Steinetz, B. , 1999, “ Full Scale Testing of an Aspirating Face Seal With Angular Misalignment,” AIAA Paper No. 99-2682.
Denecke, J. , Färber, J. , Dullenkopf, K. , and Bauer, H.-J. , 2005, “ Dimensional Analysis and Scaling of Rotating Seals,” ASME Paper No. GT2005-68676.
Buckingham, E. , 1914, “ On Physically Similar Systems; Illustrations of the Use of Dimensional Equations,” Phys. Rev., 4(4), p. 345. [CrossRef]
Brunetiere, N. , Thomas, S. , and Tournerie, B. , 2009, “ The Parameters Influencing High-Pressure Mechanical Gas Face Seal Behavior in Static Operation,” Tribol. Trans., 52(5), pp. 643–654. [CrossRef]
von der Bank, R. , Donnerhack, S. , Rae, A. , Cazalens, M. , Lundbladh, A. , and Dietz, M. , 2014, “ LEMCOTEC: Improving the Coreengine Thermal Efficiency,” ASME Paper No. GT2014-25040.
Liepmann, H. , and Roshko, A. , 1957, Elements of Gasdynamics, Courier Corporation, New York.
McBride, B. , Zehe, M. , and Gordon, S. , 2002, “ Nasa Glenn Coefficients for Calculating Thermodynamic Properties of Individual Species,” NASA Glenn Research Center, Cleveland, OH.
ANSYS, 2017, “ ANSYS Fluent Theory Guide,” 18.1 ed., ANSYS, Canonsburg, PA.
Zimmermann, A.-L. , Guemmer, V. , Nguyen, T. , and Giepmann, R. H. M. , 2017, “ Design of a Static Test Rig for Advanced Seals and Air Bearing Testing,” International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC 2017), Maui, HI https://www.researchgate.net/publication/322696542_Design_of_a_static_test_rig_for_advanced_seals_and_air_bearing_testing.
Zimmermann, A.-L. , Guemmer, V. , Nguyen, T. , and Giepmann, R. H. M. , 2018, “ Experimental Investigation and Numerical Validation of the Bearing Face Flow of an Adaptive Seal,” ASME Paper No. GT2018-75503.

Figures

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Fig. 1

Aspirating face seals components, nomenclature, and regimes

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Fig. 2

Force balance on an AFS (modified from Ref. [6])

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Fig. 3

Boundary conditions for computational fluid dynamics of the AFS

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Fig. 4

P* on stator BF for model (top) and original (bottom) scale

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Fig. 5

P* over b for R* = 0.5 and h/hmax,BF=0.5 at the BF

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