Heat Transfer in Stepped Labyrinth Seals

[+] Author and Article Information
S. Wittig, K. Jacobsen, U. Schelling, S. Kim

Lehrstuhl und Institut für Thermische Strömungsmaschinen, Universität Karlsruhe (T.H.), 7500 Karlsruhe 1, Federal Republic of Germany

J. Eng. Gas Turbines Power 110(1), 63-69 (Jan 01, 1988) (7 pages) doi:10.1115/1.3240088 History: Received February 06, 1987; Online October 15, 2009


Leakage flow and heat transfer of scaled-up stepped labyrinth seals were investigated experimentally and numerically. The experiments were conducted in a test rig under steady conditions. For different geometries and pressure ratios a finite element program was used to determine the temperature distribution and subsequently the heat transfer coefficients. In verifying the experimental results, the flow field of the seals was calculated numerically by a finite difference program. Heat transfer coefficients were derived utilizing the well-known analogies between heat transfer and wall friction.

Copyright © 1988 by ASME
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