Surface roughness effects in journal bearings with non-newtonian lubricants

Wang Long Li, Cheng I. Weng, Jang I. Lue

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


The static performance of finite journal bearings lubricated with non-Newtonian power law fluids is analyzed by using a control volume method with an Elrod algorithm to solve the average Reynolds equation and determine the cavitation region accurately. The results show that the flow behavior index of power law fluids has an insignificant affect on the load ratios, side flow ratios and cavitation regions, while it significantly affects load capacities and side flow rates. Furthermore, the effects of film thickness ratios, pressure flow factors, shear flow factors, slenderness ratios, eccentricities and inlet pressures on the variations of cavitation regions are also discussed.

Original languageEnglish
Pages (from-to)819-826
Number of pages8
JournalTribology Transactions
Issue number4
Publication statusPublished - 1996 Jan 1

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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