Theoretical Studies of Three Dimensional Transonic Flow through a Compressor Blade Row.

Abstract

This document contains a summary of efforts to develop a numerical method for calculating the inviscid, three-dimensional, transonic flow through a compressor blade row. An implicit time-marching algorithm was modified to include periodicity, boundary, and far-field conditions appropriate to internal flow. The computational grid and boundary-conforming coordinates were calculated by a conformal mapping technique, and metrics of the transformation were evaluated from analytic formulas. Calculations of the flow over a two-dimensional cascade using a coarse grid, showed that metric singularities near the trailing edge produced large oscillations in the solution. Several approaches for alleviating this problem are discussed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 1980
Accession Number
ADA095707

Entities

People

  • William J. Rae

Organizations

  • Calspan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Compressor Blades
  • Computational Fluid Dynamics
  • Computational Science
  • Computer Programming
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Differential Equations
  • Equations
  • Euler Equations
  • Flow
  • Flow Fields
  • Fluid Dynamics
  • Three Dimensional
  • Transonic Flow
  • Two Dimensional

Fields of Study

  • Physics

Readers

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