In: Journal of Hydrology and Hydromechanics, vol. 65, no. 1
Nino Krvavica - Ivica Kožar - Vanja Travaš - Nevenka Ožanić
Detaily:
Rok, strany: 2017, 49 - 59
Kľúčové slová:
Finite volume method; Q-schemes; Salt-wedge estuaries; Two-layer flows; Shallow water equations; Rječina Estuary.
URL originálneho zdroja: http://www.ih.sav.sk/jhh
O článku:
A finite volume model for two-layer shallow water flow in microtidal salt-wedge estuaries is presented in this work. The
governing equations are a coupled system of shallow water equations with source terms accounting for irregular channel geometry
and shear stress at the bed and interface between the layers. To solve this system we applied the Q-scheme of Roe with suitable
treatment of source terms, coupling terms, and wet-dry fronts. The proposed numerical model is explicit in time, shock-capturing
and it satisfies the extended conservation property for water at rest. The model was validated by comparing the steady-state solutions
against a known arrested salt-wedge model and by comparing both steady-state and time-dependant solutions against field
observations in Rječina Estuary in Croatia. When the interfacial friction factor λi was chosen correctly, the agreement between
numerical results and field observations was satisfactory.
Ako citovať:
ISO 690:
Krvavica, N., Kožar, I., Travaš, V., Ožanić, N. 2017. Numerical modelling of two-layer shallow water flow in microtidal
salt-wedge estuaries: Finite volume solver and field validation. In Journal of Hydrology and Hydromechanics, vol. 65, no.1, pp. 49-59. 0042-790X (until 2019) .
APA:
Krvavica, N., Kožar, I., Travaš, V., Ožanić, N. (2017). Numerical modelling of two-layer shallow water flow in microtidal
salt-wedge estuaries: Finite volume solver and field validation. Journal of Hydrology and Hydromechanics, 65(1), 49-59. 0042-790X (until 2019) .