Accession Number:

ADA080472

Title:

Pressures on a Slender, Axisymmetric Body at High Angle of Attack in a Very Low Turbulence Level Air Stream.

Descriptive Note:

Annual rept. no. 2, Oct 77-Apr 79,

Corporate Author:

BRISTOL UNIV (ENGLAND) DEPT OF AERONAUTICAL ENGINEERING

Personal Author(s):

Report Date:

1979-09-01

Pagination or Media Count:

64.0

Abstract:

The report describes the work and results of the past year on this contract to investigate the pressures on slender bodies at high incidence. Results are presented from two models used to investigate the transient nature of the pressures and from one model with two interchangeable noses used only for determining time-averaged pressures. The results show a dependence on roll angle but indicate that a regular and universal state may exist for the flow, and any other states are perturbations between the two possible hands of the regular state. Local side force and normal force distributions are presented which show that both are affected by the vortex flow field. The investigations have largely been performed in a low speed, very low turbulence wind tunnel. Author

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE