A simple method to calculate contact factor used in average flow model

F. M. Meng, Q Jane Wang, Diann Hua, Jordan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The average flow model proposed by Patir and Cheng offers a great convenience for the analysis of rough surfaces in lubrication. The contact factor introduced by Wu and Zheng helps to solve a difficulty in local film evaluation using the average flow model. This paper reports a simple method to calculate the contact factor. Method validation is demonstrated by the comparison of the contact factors for Gaussian surfaces obtained with the present method and the fitting formula of Wu and Zheng. The proposed method can not only easily compute the contact factor values for Gaussian surfaces, it can also be used for those of non-Gaussian and measured surfaces, especially those with unknown probability density distribution of the roughness height.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009
Pages483-485
Number of pages3
DOIs
StatePublished - Jun 24 2010
Event2009 ASME/STLE International Joint Tribology Conference, IJTC2009 - Memphis, TN, United States
Duration: Oct 19 2009Oct 21 2009

Publication series

NameProceedings of the ASME/STLE International Joint Tribology Conference 2009, IJTC2009

Other

Other2009 ASME/STLE International Joint Tribology Conference, IJTC2009
CountryUnited States
CityMemphis, TN
Period10/19/0910/21/09

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Fluid Flow and Transfer Processes
  • Surfaces and Interfaces

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