Density-driven exchange flow between open water and an aquatic canopy
Name
WRR-Density Driven exchange flow.pdf
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422.04 KB
Format
Adobe PDF
Checksum (MD5)
3032acb05b5ed37cb0f4d198c0588bb4
Author(s)
Zhang, Xueyan
Nepf, Heidi
Date Issued
August 2008
Journal
Water Resources Research
Publisher
American Geophysical Union
Citation
Zhang, Xueyan, and Heidi M. Nepf. “Density-driven exchange flow between open water and an aquatic canopy.” Water Resources Research 44.8 (2008) p.1-12. ©2008 American Geophysical Union.
Version
Final published version
Abstract
Differences in water density can drive an exchange flow between the vegetated and open regions of surface water systems. A laboratory experiment has been conducted to investigate this exchange flow, using a random array of rigid, emergent cylinders to represent the canopy region. The flow pattern was captured using a CCD camera. The velocity of the current entering the canopy and the volume discharge both decrease with increasing vegetative drag and also decrease gradually over time. Theoretical predictions for velocity and discharge rate are developed and verified with experimental observations. Extensions to field conditions are also discussed.
MIT Department
Massachusetts Institute of Technology. Department of Civil and Environmental Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1029/2007WR006676
