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RESEARCH PAPERS

Static and Dynamic Characteristics of Turbulent Annular Eccentric Seals: Effect of Convergent-Tapered Geometry and Variable Fluid Properties

[+] Author and Article Information
F. Simon, J. Frene

Université de Poitiers, Laboratoire de Mécanique des Solides, Unité associée au C.N.R.S., 86022 Poitiers Cedex, France

J. Tribol 111(2), 378-384 (Apr 01, 1989) (7 pages) doi:10.1115/1.3261927 History: Received March 21, 1988; Online October 29, 2009

Abstract

The static and dynamic characteristics of annular plain seals were investigated theoretically in the turbulent flow regime. The turbulence model which uses the nonlinear analysis developed by Elrod and Ng has been improved for Reynolds numbers higher than 100,000 to include cryogenic application. In addition, velocity boundary conditions have been reexamined. The two-dimensional Reynolds equation was solved numerically considering the swirl effect and the pressure drop due to axial acceleration of liquid at the inlet of the seal. Integration of the pressure distribution defines the reaction force developed by the seal and the corresponding rotordynamic coefficients. The solution applies for taper geometry of eccentric seal and variable fluid properties.

Copyright © 1989 by ASME
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