Flow characteristics of open channels with floating vegetation
Other Title(s)
خصائص التدفق للقنوات المكشوفة ذات الحشائش الطافية
Joint Authors
Mahmud, Adil A.
Muhammad, Hasan I.
Abd al-Al, Ala al-Din M.
Source
Journal of Engineering Sciences
Issue
Vol. 48, Issue 2 (31 Mar. 2020), pp.186-196, 11 p.
Publisher
Assiut University Faculty of Engineering
Publication Date
2020-03-31
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Topics
Abstract EN
Floating vegetation (Water hyacinth) causes many problems in waterways where it retards flow movement and changes flow structure.
In this study the impact of water hyacinth on flow behavior in open channels was investigated in a laboratory flume.
Water hyacinth was harvested from natural streams.
Four different vegetation densities, three different vegetation root depths and three different vegetation zone lengths were used for smooth and rough channel bed.
The case without water hyacinth was considered as comparative case.
The water surface profiles for all cases were investigated.
Results show that in the presence of water hyacinth water surface profile rises before vegetation zone then goes down until reaches to normal water surface.
Results also show that water surface profile influenced by vegetation density, vegetation root depth, and vegetation zone length and bed roughness.
Also the effect of vegetation parameters (density, root depth, zone length) on heading up, discharge and equivalent Manning's roughness coefficient was investigated and it is found that these parameters have a great effect on it.
Multiple regression equations based on the dimensional analysis theory were deduced to calculate heading up, discharge and equivalent Manning's roughness coefficient.
American Psychological Association (APA)
Muhammad, Hasan I.& Mahmud, Adil A.& Abd al-Al, Ala al-Din M.. 2020. Flow characteristics of open channels with floating vegetation. Journal of Engineering Sciences،Vol. 48, no. 2, pp.186-196.
https://search.emarefa.net/detail/BIM-1000350
Modern Language Association (MLA)
Muhammad, Hasan I.…[et al.]. Flow characteristics of open channels with floating vegetation. Journal of Engineering Sciences Vol. 48, no. 2 (Mar. 2020), pp.186-196.
https://search.emarefa.net/detail/BIM-1000350
American Medical Association (AMA)
Muhammad, Hasan I.& Mahmud, Adil A.& Abd al-Al, Ala al-Din M.. Flow characteristics of open channels with floating vegetation. Journal of Engineering Sciences. 2020. Vol. 48, no. 2, pp.186-196.
https://search.emarefa.net/detail/BIM-1000350
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1000350