Pressures on a Slender, Axisymmetric Body at High Angle of Attack in a Very Low Turbulence Level Air Stream.
Abstract
This report describes the work and results of the third year on this contract to investigate the pressures on slender bodies at high incidence. Results are presented of experimentally measured pressures on a model consisting of an axisymmetric cylindrical body with two interchangeable ogive nose sections in a low speed, low turbulence low freestream. Incidences up to 90 deg and the full roll angles range were covered. The results show a dependence on roll angle but indicate that a 'universal regular' state may exist for the flow, with intermediate states also being possible. The 'regular' state involves the maximum local force values. Local side force and normal force distributions are presented for a number of cases. A suitable test technique to attain scatter-free reproducible data is proposed. Details of flow visualisation using a wool tuft grid are given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1980
- Accession Number
- ADA092533
Entities
People
- J. W. Flower
- P. C. Dexter
Organizations
- University of Bristol