Naslov
Bedload sediment transport measurement dependence on the sampler orientation

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

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

Izvornik
Proceedings of the 3rd IAHR Young Professionals Congress / Ferras, David ; Varrani, Arianna ; Quaranta, Emanuele ; Fenrich, Eva ; Crispino, Gaetano ; Lores, Gonzalo García-Alén ; Silva, Ingrid ; Carillo, Jose M. ; Nones, Michael ; Yu, Qian - : International Association for Hydro-Environment Engineering and Research, 2022, 116-117

ISBN
978-90-832612-8-7

Skup
3rd Iternational Association for Hydro-Environment Engineering and Research Young Professionals Congress (IAHR 2022)

Mjesto i datum
Online, 28.11.2022. - 02.12.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ADCP, bedload transport ; Danube River ; Helley-Smith ; sand-bed

Sažetak
The hydraulic efficiency of the Helley-Smith sampler is well documented when aligned with the flow field. Sediment sampler’s misalignment with respect to the flow and riverbed can introduce additional uncertainty into the measured bedload transport. The objective of this paper is to use field data collected on the Danube River to identify potential errors in bedload transport measurement resulting from misalignment of the Helley-Smith sampler with the local flow field. The results show that compass and pitch/roll data can be used to determine the relative orientation of the sampler with respect to the mean flow velocity vector and to identify potential outliers in the measured dataset. According to the results, outliers can be identified based on the following criteria for sampler misalignment: deviation from mean flow >25° and pitch/roll angle >10°.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA