Influence of Stream Interactions on the Carrying Capacity of Two-Stage Channels
PBN-AR
Instytucja
Instytut Geofizyki Polskiej Akademii Nauk
Informacje podstawowe
Główny język publikacji
angielski
Czasopismo
Journal of Hydraulic Engineering
ISSN
2332-8215
EISSN
Wydawca
David Publishing Company
DOI
Rok publikacji
2019
Numer zeszytu
4
Strony od-do
06019003-1 - 06019003-7
Numer tomu
145
Liczba arkuszy
0,5
Słowa kluczowe
angielski
Compound channels;
Interaction of streams;
Kinematic effect
Streszczenia
Język
angielski
Treść
Streams of water in channels that have a compound cross section interact with each other. The most characteristic feature of such channels is the transfer of momentum and mass from the main channel to the floodplains. A laboratory experiment was conducted in a two-stage channel to investigate the impact of stream interactions on discharges. Various roughness conditions of the channel bottom and sloping banks were considered. An original idea was to eliminate stream interactions using glass walls placed in the interface between the main channel and the floodplains. This resulted in significant differences in water levels between these parts of the channel. Measured mean-time velocities were used to analyze changes of discharges in the main channel and floodplains in cases when the streams interact with each other and when these interactions are eliminated. A comparison of the measured velocity distributions for various parts of the compound channel with measurements taken when the floodplains were disconnected from the main channel showed that the mean velocity increased in the main channel and in the floodplains. The results obtained could constitute significant information for the increasingly popular two-stage channel building projects for hydraulic engineering purposes.
Cechy publikacji
discipline:Geofizyka – dziedzina nauk o ziemi
discipline:Inżynieria środowiska
discipline:Mechanika
discipline:Geophysics – field of earth sciences
discipline:Environmental engineering
discipline:Mechanics
Original article
Original article presents the results of original research or experiment.
Oryginalny artykuł naukowy
Oryginalny artykuł naukowy przedstawia rezultaty oryginalnych badań naukowych lub eksperymentu.
Inne
System-identifier
PBN-R:910602
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