TECHNICAL PAPERS: Gas Turbines: Heat Transfer and Turbomachinery

Influence of a Honeycomb Facing on the Flow Through a Stepped Labyrinth Seal

[+] Author and Article Information
V. Schramm, K. Willenborg, S. Kim, S. Wittig

Lehrstuhl und Institut für Thermische Strömungsmaschinen, Universität Karlsruhe, Kaiserstr. 12, D-76128 Karlsruhe, Germany

J. Eng. Gas Turbines Power 124(1), 140-146 (Feb 01, 2000) (7 pages) doi:10.1115/1.1403460 History: Received November 01, 1999; Revised February 01, 2000
Copyright © 2002 by ASME
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Geometry of labyrinth seal: h/t=0.46,H/t=0.14,b/t=0.047,HC/t=0.86,L/t=0.23,s/t=0.043,[[ellipsis]],0.114,t=28 mm
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Labyrinth seal test facility
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Computational grid, configuration with honeycombs
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Geometric situation near the gap, configuration with honeycombs
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Estimated influence of honeycomb facing on seal leakage
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Flow field, smooth configuration, π=1.1
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Discharge coefficients, smooth configuration
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Computed flow field, π=1.1, s3
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Flow field detail (CFD)
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Flow field with honeycombs (LDV), s3, π=1.1
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Flow field with honeycombs (LDV), s1, π1.1
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Influence of honeycomb-lands on discharge characteristics



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