An Application of Implicit Time Marching to Three Dimensional Flow through a Compressor Blade Row.

Abstract

Efforts to develop an implicit time-marching method for calculating the flow through a compressor blade row are reported. The flow is taken to be inviscid, and steady in blade-fixed coordinates. A conformal-mapping technique was used to generate a boundary-conforming grid, and a number of attempts were made to calculate the flow through a cascade of blades. Instabilities in the calculated results prevented the achievement of steady-state solutions. The instabilities are caused by singularities in the metrics of the coordinate transformation, especially at the trailing edges of the blades. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1980
Accession Number
ADA096354

Entities

People

  • William J. Rae

Organizations

  • Calspan

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Boundaries
  • Compressor Blades
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programs
  • Equations
  • Euler Equations
  • Fluid Dynamics
  • Fluid Mechanics
  • Geometry
  • Grids
  • Mechanical Engineering
  • Three Dimensional
  • Three Dimensional Flow
  • Transonic Flow
  • Two Dimensional

Fields of Study

  • Physics

Readers

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