Research Article
Sep 1982
Vertical Turbulent Diffusion in Air-Driven Water Flows
Publication: Journal of the Hydraulics Division
Volume 108, Issue 9
Abstract
Turbulence intensities and Reynolds stresses produced in a water channel by an air flow over the surface have been measured. An expression for the vertical eddy diffusion coefficient is derived from these results. The drag necessary for the creation of waves and the development of a boundary layer, including the acceleration of the water mass, have been taken into account and are shown to be significant. A linear shear stress distribution has been measured within the boundary layer, and the Prandtl mixing length theory and Boussinesq hypothesis are shown to provide a good basis for describing the diffusion process.
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Published In
Journal of the Hydraulics Division
Volume 108 • Issue 9 • September 1982
Pages: 995 - 1009
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Sep 1982
Published online: Feb 3, 2021
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Authors
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Louis H. J. Goossens
Scientific Officer, Safety Sci., Delft Univ. of Tech., Kanaalweg 2b, Delft, The Netherlands
Hans J. A. van Pagee
Project Engr., Delft Hydr. Lab., Rotterdamseweg 185, Delft, The Netherlands
Piet J. Tessel
Process Engr., Zuiveringsschap Veluwe, Brinklaan 268, Apeldoom, The Netherlands
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.