Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T21:13:03.493Z Has data issue: false hasContentIssue false
  • English
  • Français

Techical Notes

A numerical experiment on measured velocity distributions of turbulent pipe flow

Published online by Cambridge University Press:  04 July 2016

J. C. Gibbings
J. C. Gibbings*
Affiliation:
Fluid Mechanics Division, Department of Mechanical Engineering, University of Liverpool
Get access Rights & Permissions [Opens in a new window]

Extract

The log-law for the turbulent flow in a smooth pipe is written as:

With uT determined from the pressure drop along the pipe, the measured velocity distribution can readily be used to determine values of K and B. Alternatively, the power-law variation is written as:

involving again two constants, to be similarly determined.

Type
Research Article
Information
The Aeronautical Journal , Volume 84 , Issue 839 , December 1980 , pp. 434 - 440
Copyright
Copyright © Royal Aeronautical Society 1980 

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. Musker, A. J., Lewkowicz, A. K. and Preston, J. H. Investigation of the effect of surface roughness of a ship on the wall friction using a pipe flow technique. Univ Liverpool, Dept Mech Eng Report FM/24/76, June 1976.Google Scholar
2. Wu, C. H. Formulas and tables of coefficients for numerical differentiation with function values given at unequally spaced points and application to solution of partial differential equations. NACA TN 2214.Google Scholar
3. Hinze, J. O. Turbulence. An introduction to its mechanism and theory. McGraw-Hill, New York, 1959.Google Scholar
4. Coles, D. E. and Hirst, E. A. Proc. Computation of turbulent boundary layers—1968 AFOSR-IFP—Stanford Conference, Vol 2. Compiled data (Pub Stanford Univ, 1969).Google Scholar
5. Musker, A. J. Explicit expression for the smooth wall velocity distribution in a turbulent boundary layer. AIAA Journal, Vol 17, No 6, p 655, June 1979.Google Scholar
6. Smith, P. D. and Franklin, R. E. A new method of boundary layer wall shear stress evaluation. The Aero nautical Journal of the RAeS, Vol 83, No 824, p 320, 1979.Google Scholar