A Comparative Study of Two Computational Methods for Calculating Unsteady Transonic Flows About Oscillating Airfoils.

Abstract

This report provides a direct comparison of the calculations for the flow field about an oscillating airfoil in a transonic freestream predicted by two computational methods; namely, harmonic analysis and time integration. Details of the two methods are summarized and results for NACA64A010 airfoil oscillating in pitch are considered. Comparisons of the unsteady pressure distribution and resultant lift are presented for several values of free-stream Mach number, angle of attack, and reduced frequency of oscillation. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1977
Accession Number
ADA056946

Entities

People

  • Donald P. Rizzetta

Organizations

  • University of Dayton Research Institute

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Cartesian Coordinates
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Flow
  • Flow Fields
  • Frequency
  • Government Procurement
  • Governments
  • Harmonic Analysis
  • Leading Edges
  • Mach Number
  • Pressure Distribution
  • Shock Waves
  • Transonic Flow

Fields of Study

  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Marine Hydrodynamics