dc.contributor.author |
L. F. East |
en_US |
dc.date.accessioned |
2014-10-21T15:49:42Z |
|
dc.date.available |
2014-10-21T15:49:42Z |
|
dc.date.issued |
1966 |
en_US |
dc.identifier.other |
ARC/R&M-3525 |
en_US |
dc.identifier.uri |
https://reports.aerade.cranfield.ac.uk/handle/1826.2/2794 |
|
dc.description.abstract |
The technique consists of forming a surface pitot-tube by placing a small segment of razor blade on the surface with its tapered cutting edge above a static-pressure hole. The effects of limited changes in the razor-blade geometry on the measured pressure have been determined in a two-dimensional turbulent boundary layer and a calibration curve for a particular standardised geometry deduced. The variation of pressure due to yawing the blade segments in three-dimensional boundary layers, similar to those likely to occur on aerodynamic models, is found to be independent of the nature of the boundary layer. From this a method of using razor-blade segments to measure skin friction in three-dimensional boundary layers is proposed, which does not necessitate prior knowledge of the surface-flow direction. |
en_US |
dc.relation.ispartofseries |
Aeronautical Research Council Reports & Memoranda |
en_US |
dc.title |
Measurement of skin friction at low subsonic speeds by the razor-blade technique |
en_US |