Accession Number:

ADA050709

Title:

Unsteady Transonic Flow Over Blunt and Pointed Bodies of Revolution

Descriptive Note:

Final rept. 1 Jul 1975-13 Apr 1977

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

Report Date:

1978-02-01

Pagination or Media Count:

50.0

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.

Subject Categories:

  • Numerical Mathematics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE