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TECHNICAL PAPERS: Gas Turbines: Heat Transfer and Turbomachinery

Influence of a Honeycomb Facing on the Heat Transfer in a Stepped Labyrinth Seal

[+] Author and Article Information
K. Willenborg, V. Schramm, 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), 133-139 (Feb 01, 2000) (7 pages) doi:10.1115/1.1403459 History: Received November 01, 1999; Revised February 01, 2000
Copyright © 2002 by ASME
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References

Figures

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Labyrinth seal geometry: h/t=0.46,H/t=0.14,b/t=0.047,HHC/t=0.86,L/t=0.23,s/t=0.043[[ellipsis]]0.114=28 mm
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Labyrinth seal test facility
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Test sections with instrumentation
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Velocity field, smooth configuration, π=1.1, s1
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Velocity field, smooth configuration, π=1.1, s3
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Velocity field, honeycomb, π=1.1, s1
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Velocity field, honeycomb, π=1.1, s3
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Local heat transfer coefficients at the stator π=1.5
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Local heat transfer coefficients at the rotor, π=1.5
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Nusselt numbers for the stator
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Nusselt numbers for the rotor

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