Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-14T05:39:57.190Z Has data issue: false hasContentIssue false
  • English
  • Français

The Aerodynamic Drag of Perforated Plates at Zero Incidence

Published online by Cambridge University Press:  04 July 2016

P. Minton  and
J. R. D. Francis
P. Minton
Affiliation:
Civil Engineering Department, Imperial College, London
J. R. D. Francis
Affiliation:
Civil Engineering Department, Imperial College, London
Get access Rights & Permissions [Opens in a new window]

Extract

Perforated Plates have been used at large angles of incidence to produce drag forces and evidence on their properties has been published by de Bray. Less appears to be known about the drag forces on such surfaces at zero incidence, although they are usually considered to be aerodynamically rough. This has been confirmed by Ambrose, who carried out pipe flow experiments using perforated liners which fitted tightly in the bore of a pipe. Perforated plates used in this way do not allow flow completely through them and give “pitted” surfaces. If a perforated plate is mounted so that it is possible for cross flows to occur between the main flows on both sides of the plate the drag forces on it may be affected, and in this case the perforations will be referred to as “holes.”

Type
Technical Notes
Information
The Aeronautical Journal , Volume 62 , Issue 568 , April 1958 , pp. 301 - 303
Copyright
Copyright © Royal Aeronautical Society 1958

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.De Bray, B. G. (1956). Low Speed Wind Tunnel Tests on Perforated Square Flat Plates Normal to the Airstream. A.R.C. Current Paper 323, October 1956.Google Scholar
2.Ambrose, H. H. (1956). The Effect of Character of Surface Roughness on Velocity Distribution and Boundary Resistance. University of Tennessee, Project NS 715-102, 1956.Google Scholar
3.Goldstein, S. (1938). Modern Developments in Fluid Mechanics. Oxford University Press, 1938.Google Scholar