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RESEARCH PAPERS

Calculating Rotordynamic Coefficients of Seals by Finite-Difference Techniques

[+] Author and Article Information
F. J. Dietzen, R. Nordmann

Department of Mechanical Engineering, University of Kaiserslautern, Federal Republic of Germany

J. Tribol 109(3), 388-394 (Jul 01, 1987) (7 pages) doi:10.1115/1.3261453 History: Received February 13, 1986; Online October 29, 2009

Abstract

For modelling the turbulent flow in a seal the Navier-Stokes equations in connection with a turbulence model (k-ε-model) are solved by a finite-difference method. A motion of the shaft around the centered position is assumed. After calculating the corresponding flow field and the pressure distribution, the rotordynamic coefficients of the seal can be determined. These coefficients are compared with results obtained by using the bulk flow theory of Childs [1] and with experimental results.

Copyright © 1987 by ASME
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