Notes on Unsteady Transonic Cascade Flows.

Abstract

Several topics concerned with the unsteady transonic flow through cascades are considered. The indicial theory developed in previous work for cascade flows is examined and certain shortcomings eliminated. A consequence of this work is that some questions regarding the appropriate far field boundary conditions to use are raised. The 'strong shock' potential theory previously developed for isolated airfoil flows has been incorporated into the cascade code. A major topic in the present work is the examination of nonunique solutions for cascade flows. The variation of such solutions with cascade gap is studied with the conclusion that the nonunique solutions are unlikely to occur for practical gap/chord ratios.

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Document Details

Document Type
Technical Report
Publication Date
May 08, 1985
Accession Number
ADA154829

Entities

People

  • D. Nixon
  • K. Tzuoo

Organizations

  • Nielsen Engineering & Research (United States)

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Boundaries
  • Computational Fluid Dynamics
  • Computers
  • Convergence
  • Differential Equations
  • Far Field
  • Flow
  • Integral Equations
  • Mach Number
  • Potential Theory
  • Pressure Distribution
  • Steady Flow
  • Steady State
  • Transonic Flow
  • Two Dimensional
  • Unsteady Flow

Fields of Study

  • Physics

Readers

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