Computation of Cavity-by-Cavity Flow Development in Generic Labyrinth Seals

[+] Author and Article Information
D. L. Rhode, G. H. Nail

Turbomachinery Laboratories, Mechanical Engineering Department, Texas A&M University, College Station, Texas 77843

J. Tribol 114(1), 47-51 (Jan 01, 1992) (5 pages) doi:10.1115/1.2920866 History: Received November 07, 1990; Revised December 20, 1990; Online June 05, 2008


A recently developed version of a swirl-flow finite difference computer code was improved and employed in predicting the compressible flow of air through generic labyrinth seals. The cavity-by-cavity flow field development from the seal inlet is computed, and the distribution of various field variables is examined. Results are given for straight-through seals of corresponding teeth-on-stator and teeth-on-rotor types. The teeth-on-rotor seal gives greater leakage resistance than the equivalent teeth-on-stator design. Also, it exhibits a greater swirl velocity development. These previously unavailable predictions of swirl velocity development are provided for the refinement of simpler models, as investigators have asked for these results.

Copyright © 1992 by The American Society of Mechanical Engineers
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