An Efficient Numerical Procedure for Thermohydrodynamic Analysis of Cavitating Bearings.

Abstract

In this paper, an efficient and accurate numerical procedure to determine the thermo.hydrodynamic performance of cavitating bearings is described. This procedure is based on the earlier development of Elrod for lubricating films, in which the properties across the film thickness are determined at Lobatto points and their distributions are expressed by collocated polynomials. The cavitated regions and their boundaries are rigorously treated. Thermal boundary conditions at the surfaces, including heat dissipation through the metal to the ambient, are incorporated. Numerical examples are presented comparing the predictions using this procedure with earlier theoretical predictions and experimental data. With a few points across the film thickness and across the journal and the bearing in the radial direction, the temperature profile is very well predicted. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1995
Accession Number
ADA303690

Entities

People

  • D. Vijayaraghavan

Organizations

  • University of Toledo

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Climate Change
  • Energy
  • Engineering
  • Equations
  • Experimental Data
  • Flow Rate
  • Fluid Mechanics
  • Heat Transfer
  • Heat Transfer Coefficients
  • Lubricants
  • Lubricating Films
  • Mechanical Engineering
  • Secondary Flow
  • Steady State
  • Temperature Gradients
  • Thermal Analysis
  • Tribology

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).