Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-25T06:34:11.167Z Has data issue: false hasContentIssue false

Asymmetric distributions of base pressure on an axi-symmetric body

Published online by Cambridge University Press:  04 July 2016

W. A. Mair
Affiliation:
Engineering Department, University of Cambridge
S. M. Wilkin
Affiliation:
Engineering Department, University of Cambridge

Extract

The work to be described was planned as the first stage of an investigation of the effects of streamwise vortices on base pressure. An axi-symmetric blunt-based body was used, consisting of a cylindrical portion with a semiellipsoidal nose. The intention was to mount strakes or semi-delta wings at incidence on the sides of the body to produce vortices and to measure the effects of these on the base pressure. The base of the body was fitted with 37 pressure tappings so that local variations of base pressure could be explored. It was found that for the body at zero incidence and yaw, without any strakes or wings, there was great difficulty in obtaining an axi-symmetric distribution of pressure on the base.

Type
Technical Notes
Copyright
Copyright © Royal Aeronautical Society 1978 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Maskell, E. C. A theory of the blockage effects on bluff bodies and stalled wings in a closed wind tunnel. ARC R&M 3400, 1965.Google Scholar
2. Calvert, J. R. Experiments on the low speed flow past cones. J Fluid Mech 27, 273289, 1967.Google Scholar
3. Calvert, J. R. Experiments on the flow past an inclined disk. J Fluid Mech 29, 691703, 1967.Google Scholar