Research Article
Jul 1981
Flow Resistance in Coarse Gravel Bed Rivers
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 107, Issue 7
Abstract
Flow resistance relations are deduced from data on coarse gravel bed reaches of New Zealand rivers. Measurements of hydraulic variables were made during reasonably uniform subcritical flows at cross sections regular in confirmation. Channel bed and bank roughness are not distinguished, and surface bedmaterial is characterized by the median size. When the channel boundary is rigid the Darcy-Weisbach friction factor is only a statistically significant function of the ratio of hydraulic radius to median size of surface bedmaterial. A model of this form explained 60 percent of the friction factor variance inherent in the field data set. With active bedload transport conditions and changing bed topography, the Froude Number based on median surface bedmaterial size was statistically significant, and 40 percent of friction factor variance was explained by this latter model.
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 7 • July 1981
Pages: 899 - 918
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Jul 1981
Published online: Feb 3, 2021
Permissions
Request permissions for this article.
Authors
Affiliations
George A. Griffiths
Scientist, Water and Soil Division, Ministry of Works and Development, P.O. Box 1479, Christchurch, New Zealand
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.