Lubrication Theory for Newtonian Fluids with Striated Roughness or Grooving.

Abstract

Earlier work by others concerning the effects of striated roughness and grooving upon the load-carrying capacity of lubricating films is summarized, substantiated and generalized. A multiple-scale double-variable technique is used on such lubrication problems for the first time. The present analysis applies to one-face roughness having striation wavelengths sufficiently long for the applicability of Reynolds equation. Transient effects are included. The final differential equation for support pressure is simple in form. In addition to predicting the effects of striated 'Reynolds roughness,' this equation can be directly used in grooved-bearing design. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
AD0747307

Entities

People

  • Harold G. Elrod

Organizations

  • Columbia University

Tags

DTIC Thesaurus Topics

  • Computers
  • Differential Equations
  • Equations
  • Films
  • Finishes
  • Grooving
  • Lubricating Films
  • Lubrication
  • Payload
  • Physical Properties
  • Roughness
  • Striations
  • Surface Properties
  • Surface Roughness

Fields of Study

  • Mathematics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Calculus or Mathematical Analysis
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).