Naslov
Hydraulics of Stratified Two-layer Flow in Rječina Estuary

Autori
Krvavica, Nino ; Travaš , Vanja ; Ravlić, Nenad ; Ožanić, Nevenka

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

Izvornik
Landslide and Flood Hazard Assessment / Mihalić Arbanas, Snježana ; Arbanas, Željko - Zagreb : Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb and Faculty of Civil Engineering, Faculty of Rijeka, 2014, 257-261

ISBN
978-953-6923-26-7

Skup
1st Regional Symposium on Landslides in the Adriatic-Balkan Region with the 3rd Workshop of the Croatian-Japanese Project 'Risk Identification and Land-Use Planning for Disaster Mitigation of Landslides and Floods in Croatia'

Mjesto i datum
Zagreb, Hrvatska, 06.03.2013. - 09.03.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Rječina; estuary; salt wedge; salinity; stratification; regression analysis; numerical mode

Sažetak
The salinity distributions in the Rječina Estuary, in Croatia, are thoroughly studied through intensive sampling campaigns. Strong vertical stratification was observed throughout the tidal cycle, proving the limited vertical mixing between seawater and freshwater layer, and implying the presence of salt wedge. The salt wedge is developed at the downstream river part, and its length is found to be directly related to Rječina River discharges. The length of the wedge is also dependent, but in smaller intense, to tidal phases. Bathymetry also plays a major role in wedge propagation, especially during small river discharges. A one- dimensional model for two-layer stratified flow, based on Schijf and Schonfeld model, was developed and used. By calibrating the interfacial friction factor, calculated density interface fitted very well to measured data.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

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