Unsteady Transonic Flow Over Blunt and Pointed Bodies of Revolution

Abstract

A perturbation theory and numerical solution, based on the unsteady full potential equation, were developed to calculate the unsteady transonic flow field over blunt and pointed bodies of revolution performing harmonic oscillatory motions at zero incidence. Calculations were performed for pulsatile oscillations for a hemisphere-cylinder and pitching oscillations for an ogive- cylinder, an ellipse-cylinder, a hemisphere-cylinder, and a parabolic arc nose. Comparison between theory and experiments was made for the surface pressure distribution at quasi-steady state and for the static and dynamic stability derivatives.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1978
Accession Number
ADA050709

Entities

People

  • T. Hsieh

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Bodies Of Revolution
  • Computer Programs
  • Coordinate Systems
  • Difference Equations
  • Differential Equations
  • Engineering
  • Equations
  • Experimental Data
  • Flow Fields
  • Geometry
  • Mach Number
  • Perturbation Theory
  • Pressure Distribution
  • Pressure Measurement
  • Steady Flow
  • Steady State

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Calculus or Mathematical Analysis
  • Fluid Mechanics and Fluid Dynamics.