Influence of a Honeycomb Facing on the Flow Through a Stepped Labyrinth Seal-Reference-Cited by-同舟云学术

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

Published:2000-02-01 Issue:1 Volume:124 Page:140-146
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Schramm V.¹,Willenborg K.¹,Kim S.¹,Wittig S.¹

Affiliation:

1. Lehrstuhl und Institut fu¨r Thermische Stro¨mungsmaschinen, Universita¨t Karlsruhe, Kaiserstr. 12, D-76128 Karlsruhe, Germany

Abstract

This paper reports numerical predictions and measurements of the flow field in a stepped labyrinth seal. The theoretical work and the experimental investigations were successfully combined to gain a comprehensive understanding of the flow patterns existing in such elements. In order to identify the influence of the honeycomb structure, a smooth stator as well as a seal configuration with a honeycomb facing mounted on the stator wall were investigated. The seal geometry is representative of typical three-step labyrinth seals of modern aero engines. The flow field was predicted using a commercial finite volume code with the standard k-ε turbulence model. The computational grid includes the basic seal geometry as well as the three-dimensional honeycomb structures.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/124/1/140/5890177/140_1.pdf

Reference19 articles.

1. Wittig, S., Do¨rr, L., and Kim, S., 1983, “Scaling Effects on Leakage Losses in Labyrinth Seals,” ASME J. Eng. Gas Turbines Power, 105, pp. 305–309.

2. McGreehan, W. F., and Ko, S. H., 1989, “Power Dissipation in Smooth and Honeycomb Seals,” ASME Paper 89-GT-220.

3. Waschka, W., Wittig, S., and Kim, S., 1990, “Influence of High Rotational Speeds on the Heat Transfer and Discharge Coefficients in Labyrinth Seals,” ASME J. Turbomach., 114, pp. 462–468.

4. Rhode, D., Ko, S., and Morrison, G., 1994, “Leakage Optimization of Labyrinth Seals Using a Navier-Stokes Code,” Tribol. Trans., 37, No. 1, pp. 105–110.

5. Rhode, D., Ko, S., and Morrison, G. L., 1994, “Experimental and Numerical Assessment of an Advanced Labyrinth Seal,” Tribol. Trans., 37, No. 4, pp. 743–750.

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