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Apparent shear stress in smooth compound channels
This item is provided by the institution :
National Technical University of Athens
Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA
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ΕΚΤ item type
Journal part
(EN)
Scientific article
(EN)
EKT year
1992
(EN)
EKT historical period
Title
Apparent shear stress in smooth compound channels (EN)
Creator
Christodoulou, GC (EN)
Description
A simple, dimensionally sound, formula is proposed for expressing the apparent shear stress on the vertical interface between main channel and flood plain in a compound channel. An apparent friction factor is introduced and its dependence on the cross-section shape is examined based on experimental results reported in previous studies. For symmetrical smooth channels, it is found that this friction factor is essentially independent of the flow depth and is well linearly correlated with the width ratio of the compound section, at least within the ranges of practical interest where data are available. Discharge estimates obtained by incorporating the predicted shear stress in the φ{symbol}-index method compare well with experimental results. The suggested approach is sufficiently accurate for practical applications and may be extended to other channel shapes and roughnesses depending on the acquisition of adequate data. © 1992 Kluwer Academic Publishers. (EN)
Type
journalArticle (EN)
Subject
hydraulics (EN)
open channel flow (EN)
shear stress (EN)
Compound channels (EN)
floodplain (EN)
apparent shear stress (EN)
channel shape (EN)
flood plains (EN)
compound channel (EN)
friction factor (EN)
momentum transfer (EN)
Provider
National Technical University of Athens
Repository / collection
Digital Library of National Technical University of Athens | Dspace@NTUA
Subcollections
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά
Journal
Water Resources Management (EN)
Issued
1992 (EN)
Identifier
http://hdl.handle.net/123456789/10639
10.1007/BF00872358 (EN)
3 (EN)
235 (EN)
247 (EN)
6 (EN)
09204741 (EN)
Publisher
Kluwer Academic Publishers (EN)
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