A previously validated finite difference computer code was revised to allow the specification of upstream and downstream reservoir conditions as boundary conditions, whereas the domain extends only from the seal inlet to outlet plane. As a result of this special revision, the required execution CPU time is approximately only one hour on a VAX 8650 computer for three-cavity, straight-through seals. A parametric study focusing on tooth thickness showed that streamwise swirl development was only slightly higher for the thickest tooth. Further, for straight-through seals it was found that leakage is almost independent of tooth thickness and that the second cavity yields a definite increase in turbulence energy and turbulence length scale over the first cavity.
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October 1992
Research Papers
Tooth Thickness Effect on the Performance of Gas Labyrinth Seals
D. L. Rhode,
D. L. Rhode
Turbomachinery Laboratories, Mechanical Engineering Department, Texas A&M University, College Station, Texas 77843
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R. I. Hibbs
R. I. Hibbs
Turbomachinery Laboratories, Mechanical Engineering Department, Texas A&M University, College Station, Texas 77843
Search for other works by this author on:
D. L. Rhode
Turbomachinery Laboratories, Mechanical Engineering Department, Texas A&M University, College Station, Texas 77843
R. I. Hibbs
Turbomachinery Laboratories, Mechanical Engineering Department, Texas A&M University, College Station, Texas 77843
J. Tribol. Oct 1992, 114(4): 790-795 (6 pages)
Published Online: October 1, 1992
Article history
Received:
April 13, 1990
Revised:
December 1, 1991
Online:
June 5, 2008
Citation
Rhode, D. L., and Hibbs, R. I. (October 1, 1992). "Tooth Thickness Effect on the Performance of Gas Labyrinth Seals." ASME. J. Tribol. October 1992; 114(4): 790–795. https://doi.org/10.1115/1.2920950
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