NON-NEWTONIAN FLOW IN INFINITE-LENGTH STEP-SHAPED BEARINGS.

Abstract

Analytical solutions are obtained for the pressure, flow rate, load-carrying capacity and friction force for the steady and laminar flow of inelastic, isothermal, incompressible non-Newtonian fluids (that is, lubricants) in infinite-length step-shaped bearings. The Rabinowitsch equation is used for the non-Newtonian behavior where the viscosity varies nonlinearly with the shear stress. The solution is applicable to both dilatant and pseudoplastic non-Newtonian fluids, and for the case of Newtonian fluids, it can be reduced to a form consistent with the published results for the Newtonian case. The pressure distribution, flow rate, load-carrying capacity and friction force are calculated numerically for several examples, and the results are compared with the corresponding solutions for a Newtonian fluid. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1969
Accession Number
AD0690934

Entities

People

  • D. Hung
  • D. Muster

Organizations

  • University of Houston

Tags

DTIC Thesaurus Topics

  • Bearings
  • Equations
  • Flow
  • Flow Rate
  • Friction
  • Laminar Flow
  • Lubricants
  • Payload
  • Pressure Distribution
  • Shear Stresses
  • Stresses
  • Viscosity

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Fluid Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).