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TECHNICAL PAPERS

Three-Dimensional CFD Rotordynamic Analysis of Gas Labyrinth Seals

[+] Author and Article Information
J. Jeffrey Moore

Dresser-Rand Co., Paul Clark Dr., Olean, NY 14760e-mail: jeff_moore@dresser-rand.com

J. Vib. Acoust 125(4), 427-433 (Oct 08, 2003) (7 pages) doi:10.1115/1.1615248 History: Received June 01, 2003; Online October 08, 2003
Copyright © 2003 by ASME
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References

Figures

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2D grid for inlet, 1st tooth, and cavity
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3D labyrinth seal model
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Mesh density study (meridional)
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Mesh density study (circumferential)
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Velocity vectors in labyrinth seal cavity
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Static pressure distribution through seal
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Circumferential swirl prediction upstream of seal (dark=high swirl)
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Streaklines through seal
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Circumferential pressure distribution
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Tangential impedance, Pr=0.403, 16 krpm, Seal-Only
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Tangential impedance, Pr=0.65, 16 krpm, Γs=0, Seal Only
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Comparison of seal models, 16 krpm, Pr=0.403,Γs=0
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Effect of seal clearance, Pr=0.398, 16 krpm, Γs=0, up-seal model
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18 tooth labyrinth seal
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Velocity vectors, DR 18 tooth Laby
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Static pressure tap measurement vs. prediction for 18 tooth DR Laby, 0 rpm
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Static pressure tap meas. vs. prediction for 18 tooth DR Laby, 15 krpm

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