Predicting Performance of Gas-Lubricated Seals Using Advanced Numerical Techniques.

Abstract

Steady-state and dynamic performance of a gas-lubricated positive stiffness face seal was determined using advanced numerical methods based on a variable grid, finite difference, time-transient procedure. Comparisons were made between different numerical approaches used to solve the pressure distribution across the seal face and the Alternating Direction Implicit method was selected for the seal analyses. The resulting computer program was found to be faster (by a factor of 15) and more accurate than the previously employed straight implicit method. A detailed description of this method is also presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1972
Accession Number
AD0745333

Entities

People

  • R. Colsher
  • W. Shapiro

Organizations

  • Franklin Institute

Tags

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Pressure Distribution
  • Steady State
  • Stiffness

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).