Numerical Stability Analysis of a Compressor Model

Abstract

Various numerical schemes for solving the equations of a compressor model are analyzed. Runge-Kutta scheme, JRS scheme and MacCormack scheme have been studied. Proper imposition of the boundary conditions has been found to be critical for the numerical stability of these schemes. An accurate method of prescribing the boundary conditions by the use of characteristics has been developed. With this method of boundary conditions numerically stable results have been obtained for different test cases by all three numerical schemes.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1982
Accession Number
ADA116878

Entities

People

  • K. C. Reddy
  • Yeng-yung Tsui

Organizations

  • University of Tennessee Space Institute

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Boundaries
  • Compression
  • Compressors
  • Computational Fluid Dynamics
  • Computational Science
  • Contracts
  • Difference Equations
  • Differential Equations
  • Eigenvalues
  • Equations
  • Method Of Characteristics
  • Partial Differential Equations
  • Static Pressure
  • Tennessee
  • United States

Fields of Study

  • Mathematics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)