Squeeze Film Dynamics of Two-Phase Seals: Part II—Turbulent Flow

[+] Author and Article Information
J. A. Yasuna, W. F. Hughes

Mechanical Engineering Department, Carnegie Mellon University, Pittsburgh, PA 15213

J. Tribol 116(3), 479-487 (Jul 01, 1994) (9 pages) doi:10.1115/1.2928868 History: Received February 14, 1992; Revised November 01, 1992; Online June 05, 2008


A previously developed dynamic model for two-phase face seals is extended to include turbulent flow. Thermal transients over the entire range of laminar and turbulent flow are considered for both parallel and tapered geometries. Inlet losses and choking are accounted for in the turbulent regime. Axial responses to perturbations from equilibrium are examined, and general criteria are discussed for predicting stable, unstable and bistable seal operation.

Copyright © 1994 by The American Society of Mechanical Engineers
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