Research Article
Feb 1981
Modeling Transverse Mixing in Natural Streams
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYAuthors: Y. Lam Lau and Bommanna G. KrishnappanAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 107, Issue 2
Abstract
A model of transverse mixing in natural streams has been tested using dye data from a field experiment and has been proven successful. The model uses a natural coordinate system which follows the curvature of the stream and is based on the cumulative discharge concept. In the numerical solutions, different assumptions are used for the factor of diffusion, (uh²mxez). The best accuracy is found when local values of (uh²mx) are used together with a dispersion coefficient ez which can vary in the downstream direction. The changes in the size of the dye plume can be predicted fairly well, even with an analytical solution. An analysis of available field values for ez suggests that the dimensionless dispersion coefficient ez/U*W can be represented as a function of the width-depth ratio and a variable which characterizes the curvature of the stream. The sinuosity is a possible variable to use. Most of the data are distributed fairly well along one curve which can be used to obtain estimates of ez for streams with small curvatures.
Get full access to this article
View all available purchase options and get full access to this article.
Information & Authors
Information
Published In
Journal of the Hydraulics Division
Volume 107 • Issue 2 • February 1981
Pages: 209 - 226
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Feb 1981
Published online: Feb 3, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
Y. Lam Lau
Head., Environmental Hydr. Section, Research Div., National Water Research Instit., Canada Center for Inland Waters, 867 Lakeshore Rd., Burlington, Ontario, L7R 4A6, Canada
Bommanna G. Krishnappan
Environmental Hydr. Section, Hydr. Research Div., National Water Research Instit., Canada Center for Inland Waters, 867 Lakeshore Road, Burlington, Ontario, L7R 4A6, Canada
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.
Cited by
View Options
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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.
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.
Get Access
Access content
Please select your options to get access
Log in/Register
Log in via your institution (Shibboleth)
ASCE Members:
Please log in to see member pricing
Purchase
Save for later Item saved, go to cart Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
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.
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.