mirage

Modified logarithmic law for velocity distribution subjected to upward seepage.

DSpace/Manakin Repository

 

Search DR-NTU


Advanced Search Subject Search

Browse

My Account

Modified logarithmic law for velocity distribution subjected to upward seepage.

Show full item record

Title: Modified logarithmic law for velocity distribution subjected to upward seepage.
Author: Cheng, Nian-Sheng; Chiew, Yee-Meng.
Copyright year: 1998
Abstract: A modified logarithmic law is derived to describe the velocity distribution in open-channel flow with an upward seepage. The derived function agrees well with the experimental measurements conducted in a laboratory flume. The roughness function included in the modified logarithmic law is found to be dependent on the boundary Reynolds number and the ratio of the seepage velocity to the shear velocity. With the integration of the modified logarithmic law, the bed-shear stress subjected to upward seepage can be computed based on the depth-averaged velocity, water depth, boundary roughness, and seepage velocity. Using this method, variations of the bed-shear stress over the seepage zone are studied. The results show that the bed-shear stress decreases rapidly from the leading section of the seepage zone and then increases gradually toward the downstream end of the seepage zone.
Subject: DRNTU::Engineering::Civil engineering::Water resources.
Type: Journal Article
Series/ Journal Title: Journal of hydraulic engineering
School: School of Civil and Environmental Engineering
Rights: © 1998 ASCE. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Hydraulic Engineering, ASCE. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1061/(ASCE)0733-9429(1998)124:12(1235)].

Files in this item

Files Size Format View
126. MODIFIED ... CTED TO UPWARD SEEPAGE.pdf 418.1Kb PDF View/Open
   

DOI Query

- Get published version (via Digital Object Identifier)
   

This item appears in the following Collection(s)

Show full item record

Statistics

Total views

All Items Views
Modified logarithmic law for velocity distribution subjected to upward seepage. 367

Total downloads

All Bitstreams Views
126. MODIFIED LOGARITHMIC LAW FOR VELOCITY DISTRIBUTION SUBJECTED TO UPWARD SEEPAGE.pdf 351
ASCE JHE 1998 Modified Log Law.pdf 18

Top country downloads

Country Code Views
United States of America 135
Singapore 27
China 21
Japan 14
India 13

Top city downloads

city Views
Mountain View 89
Singapore 27
Beijing 10
Tokyo 10
Guwahati 7

Downloads / month

  2014-05 2014-06 2014-07 total
126. MODIFIED LOGARITHMIC LAW FOR VELOCITY DISTRIBUTION SUBJECTED TO UPWARD SEEPAGE.pdf 0 0 14 14