Flow over thin-plate weirs with a triangular notch – influence of the relative width of approach channel with a rectangular cross-section
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU151388" target="_blank" >RIV/00216305:26110/24:PU151388 - isvavai.cz</a>
Result on the web
<a href="https://sciendo.com/article/10.2478/johh-2024-0008" target="_blank" >https://sciendo.com/article/10.2478/johh-2024-0008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2478/johh-2024-0008" target="_blank" >10.2478/johh-2024-0008</a>
Alternative languages
Result language
angličtina
Original language name
Flow over thin-plate weirs with a triangular notch – influence of the relative width of approach channel with a rectangular cross-section
Original language description
The article deals with the determination of the influence of the relative width of an approach channel with a rectangular cross-section on the discharge of clean water flowing over thin-plated weirs with a triangular notch and zero height of the weir above the bottom of the approach channel. To evaluate the influence, the Kindsvater-Shen equation was modified by introducing the basic effective discharge coefficient and the coefficient of the relative width of the approach channel. The coefficient of the relative width of the approach channel was determined based on the evaluation of data from three extensive experimental research investigations. It is valid for the entire possible range of relative widths of the approach channel and for the range of notch angles from 5.25° to 91.17°. The relative error of discharge determination is approximately up to ±2% over the entire range of discharges used in the conducted experimental research. The evaluation made it possible to determine the boundary distinguishing the partially contracted weirs from the fully contracted weirs in terms of impact on discharge.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Hydrology and Hydromechanics
ISSN
0042-790X
e-ISSN
1338-4333
Volume of the periodical
72
Issue of the periodical within the volume
2
Country of publishing house
SK - SLOVAKIA
Number of pages
8
Pages from-to
199-206
UT code for WoS article
001216563700001
EID of the result in the Scopus database
2-s2.0-85193261847