Naslov
Experimental investigation of flow field in a physical fishway model

Autori
Gilja, Gordon ; Ocvirk, Eva ; Cikojević, Antonija

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
16th International symposium Water management & hydraulic engineering WMHE 2019 / Pelivanovski, Petko ; Jovanovski, Milorad ; Petkovski, Ljupcho ; Donevska, Katerina - Skopje : Ss Cyril and Methodius University, Civil Engineering Faculty, 2019, 1-12

ISBN
978-608-4510-33-8

Skup
16th International Symposium on Water Management and Hydraulic Engineering (WMHE2019)

Mjesto i datum
Skopje, Sjeverna Makedonija, 05.09.2019. - 07.09.2019

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pool-type fishway, vertical slot fishway, physical model, ADV, recirculation zone, slot zone

Sažetak
This paper describes the detailed testing of the characteristic velocity fields on the physical model of pool-type and vertical slot fishway. For the physical model setup, a 18m long, 0.9m wide and 0.9m high hydraulic flume with rectangular cross-section was used. Each type of fishway was tested by a physical model in geometric scale 1:3 for the different gradient (12.5%, 10% and 7.5%), the pool length (45cm, 60cm and 90cm) and orifices or slots geometry. Raster of the measuring points is defined longitudinally, transversely and by the flow depth so that it includes all relevant positions that are of interest to estimate the hydraulic efficiency of the fishways. The results of experimental measurements were analysed by comparing the velocity field in pools for both types of fishways and all configurations within them. Flume experiments have shown that local variability of the flow field heavily influences the measurement quality and consequently the results.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA