Small Unsteady Perturbations in Transonic Flows,

Abstract

The effects of very small, low frequency, perturbations to steady transonic flows are investigated for two-dimensional flows described by the small perturbation equation. A method that allows one to account for shock wave motions due to arbitrary, but small, unsteady changes in the boundary conditions is described. Both harmonic and indicial responses may be calculated. Time-linearized results for transonic flow past an NACA 64A006 airfoil experiencing harmonic motions in one of several modes are presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA046923

Entities

People

  • K.-y. Fung
  • N. J. Yu
  • R. Seebass

Organizations

  • University of Arizona

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Algorithms
  • Amplitude
  • Bodies
  • Computational Fluid Dynamics
  • Computations
  • Equations
  • Equations Of Motion
  • Flow
  • Fluid Dynamics
  • Frequency
  • Mach Number
  • Pressure Distribution
  • Shock Waves
  • Steady Flow
  • Steady State
  • Transonic Flow

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Fluid Mechanics and Fluid Dynamics.