Secondary flows in ducts of square cross-section
- 11 July 1972
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Fluid Mechanics
- Vol. 54 (2) , 289-295
- https://doi.org/10.1017/s0022112072000680
Abstract
The paper presents the outcome of experimental research on turbulence-induced secondary flows in square-sectioned ducts. The main emphasis of the experiments has been on the measurement of the secondary flows in a duct with equally roughened surfaces. Here the secondary flow is a substantially larger proportion of the axial flow than is the case in smooth-walled ducts. With the secondary velocities normalized by the friction velocity, however, the resultant profiles for smooth and rough surfaces are the same, within the precision of the measurements.Keywords
This publication has 2 references indexed in Scilit:
- On some aspects of fully-developed turbulent flow in rectangular channelsJournal of Fluid Mechanics, 1965
- The production and diffusion of vorticity in duct flowJournal of Fluid Mechanics, 1964