Bed roughness at high bed shear in open channels and pressurized pipes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00178532" target="_blank" >RIV/68407700:21110/10:00178532 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Bed roughness at high bed shear in open channels and pressurized pipes
Original language description
The roughness is discussed of gravel bed streams at high bed shear caused by a flood flow carrying a substantial amount of sediments. An analogy is described with flows eroding a stationary deposit in enclosed pressurized pipes. Field measurements were carried out in two gravel-bed streams after a disastrous flood in June 2009. The measurements indicated that at the peak discharges the values of the gravel-bed roughness were considerably higher than predicted for gravel-bed streams in the literature. Itis suggested that the increase in bed roughness is due to additional friction exerted by transported sediments. A mechanism of friction due to grains transported as bed load is demonstrated on the results of flows in the upper-plane-bed regime through enclosed pipes.
Czech name
—
Czech description
—

Project
<a href="/en/project/1M0579" target="_blank" >1M0579: Centre for Integrated Design of Advanced Structures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the International Conference on Fluvial Hydraulics
ISBN
978-3-939230-00-7
ISSN
—
e-ISSN
—
Number of pages
7
Pages from-to
—
Publisher name
Technische Universität
Place of publication
Braunschweig
Event location
Braunschweig
Event date
Sep 8, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
—

Similar results(10)