Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-22T05:22:48.932Z Has data issue: false hasContentIssue false
  • English
  • Français

A note on Turbulent Skin Friction measured with a Preston Tube

Published online by Cambridge University Press:  04 July 2016

Rajni P. Patel
Rajni P. Patel*
Affiliation:
Mechanical Engineering Department, University College, Nairobi, University of East Africa
Get access Rights & Permissions [Opens in a new window]

Extract

In 1954, Preston introduced a new concept of skin friction measurement in turbulent flows by using a surface pitot tube. Since then considerable controversy has risen in the use of Preston tubes for skin friction measurements. However, Head and Rechenberg investigated Preston tubes extensively and confirmed the validity of the Preston tube method. Recently Rajaratnam has given a theoretical calibration curve for the Preston tube using logarithmic velocity distribution for the boundary layer velocity profile.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 70 , Issue 671 , November 1966 , pp. 1043 - 1044
Copyright
Copyright © Royal Aeronautical Society 1966

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.Preston, J. H.The determination of turbulent skin friction by means of pitot tubes. J RAeS, Vol. 58, 1954.Google Scholar
2.Head, M. R. and Rechenberg, I.The Preston tube as a means of measuring skin friction. J. Fluid Mech, Vol. 14, pp 1–17, 1962.Google Scholar
3.Rajaratnam, N.A theoretical calibration curve for the Preston tube on smooth boundaries for larger Reynolds numbers. J RAeS, Vol. 69, p. 136, 1965.Google Scholar
4.Patel, R. P. An explicit theoretical relation for skin friction measured with Preston or Stanton tube in turbulent flow. Report M. 65.1. Dept of Mech Eng, University College, Nairobi, Kenya. June 1965.Google Scholar
5.Schlichting, H.Boundary layer theory. 4th Edition. McGraw Hill, p 508, 1960.Google Scholar
6.Rechenberg, I. Messung der turbulenten wandschub- spannung, zeitschrift fur flugwissenschaften, 11, Heft 11, 1963.Google Scholar
7.Patel, R. P. Self preserving, two-dimensional turbulent jets and wall jets in a moving stream. M Eng Thesis, Dept of Mech Eng, McGill University, April 1962.Google Scholar
8.Smith, D. W. and Walker, J. H. Skin friction measure ments in incompressible flow. NACA TN 4231, Marcb 1958.Google Scholar