On the Numerical Determination of Flow Factors

[+] Author and Article Information
H. J. Peeken

RWTH Aachen, Am Pannhaus 1, 52072 Aachen, Germany

G. Knoll, A. Rienäcker, J. Lang, R. Schönen

Lehrstuhl für Maschinenelemente und Tribologie, Univ. Gh Kassel, Mönchebergstr. 3, 34125 Kassel, Germany

J. Tribol 119(2), 259-264 (Apr 01, 1997) (6 pages) doi:10.1115/1.2833178 History: Received February 02, 1996; Revised June 17, 1996; Online January 24, 2008


The paper focuses on the numerical determination of Patir and Cheng’s flow factors for general roughness patterns. Improved procedures for the generation of surface roughness and flow simulation are presented. It is shown that application of these techniques resolves differences to analytical solutions of Elrod and Tripp and reduces the scatter in the results to a reasonable degree. Flow factor charts are given for the ‘standard’ Gaussian/Peklenik roughness and for sintered surfaces with high skewness.

Copyright © 1997 by The American Society of Mechanical Engineers
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