Naslov
Experimental study of turbulent kinetic energy of flow over scoured riverbed

Autori
Gilja, Gordon ; Drandić, Luka ; Fliszar, Robert ; Harasti, Antonija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, prošireni sažetak, znanstveni

Izvornik
EGU General Assembly 2023 / - Beč : Copernicus Publications, 2023

Skup
EGU General Assembly 2023

Mjesto i datum
Beč, Austrija, 23.04.2023. - 28.04.2023

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Flume, pier, TKE, ADVP

Sažetak
Rapid development of the instantaneous flow velocity instruments allows for high frequency measurement of turbulent flow field in the hydraulic flume. To obtain accurate and reliable flow measurement it is necessary to correctly configure the instrument using the manufacturer’s general guidelines. When instruments are used in highly turbulent flows, such as flows around bridge piers, selection of parameters is not straightforward and it generally requires validation against known data. In this study, experimental flow velocity data was collected in the hydraulic flume at three characteristic cross- sections – bridge profile, and upstream, and downstream profile. Velocity was measured on 10 points for each cross-section using Nortek Vectrino Profiler. Velocity measurements were processed to calculate turbulent kinetic energy at discrete points, after which TKE map was interpolated over the entire cross-section using QGIS. Results of TKE maps are compared for two characteristic flow rates and changes in TKE distribution respective to the flow downstream analyzed to quantify influence of the bridge pier and scour protection on the flow in the bridge vicinity.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Interdisciplinarne tehničke znanosti

POVEZANOST RADA