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TECHNICAL PAPERS

A Bulk-Flow Analysis of Static and Dynamic Characteristics of Eccentric Circumferentially-Grooved Liquid Annular Seals

[+] Author and Article Information
Mihai Arghir, Jean Frene

LMS, Université de Poitiers, UFR Sciences, SP2MI, Téléport 2, Blvd. Pierre et Marie Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France

J. Tribol 126(2), 316-325 (Apr 19, 2004) (10 pages) doi:10.1115/1.1611499 History: Received February 24, 2003; Revised July 10, 2003; Online April 19, 2004
Copyright © 2004 by ASME
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References

Figures

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Three-control-volume model of the groove flow and the corresponding pressure variation
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Finite volume discretization
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Leakage flow rate (solid line is the present analysis, dashed line are experimental data from 11)
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Pressure distributions along a ten-grooves annular seal for centered working conditions (ΔP=64.5 bar, Ω=24,600 rpm)
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Example of the first order pressure variation for an eccentric ten-grooves annular seal (ΔP=64.5 bar, Ω=24,600 rpm)
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Stiffness coefficients [MN/m] versus relative eccentricity (1=KXX,2=KYY,3=KXY,4=KYX, solid line is the present analysis, dashed lines are experimental data from 11)
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Damping coefficients [kNs/m] versus relative eccentricity (1=CXX,2=CYY,3=CXY,4=−CYX, solid line is the present analysis, dashed lines are experimental data from 11)
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Added-mass coefficients [kg] versus relative eccentricity (1=MXX,2=MYY, solid line is the present analysis, dashed lines are experimental data from 11)

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