crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 891372

Zbornik radova

Autori: Krvavica, Nino; Kožar, Ivica; Ožanić, Nevenka
Naslov: The relevance of turbulent mixing in estuarine numerical models for two-layer shallow water flow
Izvornik: Proceedings: Multiscale Computational Methods for Solids and Fluids / Ibrahimbegović, Adnan ; Brank, Boštjan ; Kožar, Ivica (ur.). - Ljubljana : Faculty of Civil and Geodetic Engineering, Ljubljanja , 2017. 175-177 (ISBN: 978-961-6884-49-5).
Skup: ECCOMAS MSF 2017: 3rd International Conference on Multiscale Computational Methods for Solids and Fluids,
Mjesto i datum: Ljubljana, Slovenija, 20-22.09.2017.
Ključne riječi: turbulent mixing ; entrainment ; two-layer flow ; finite volume method ; shallow water flow ; numerical model ; estuaries
Sažetak:
The relevance of turbulent mixing in estuarine numerical models for stratified two-layer shallow water flows is analysed in this paper. A one-dimensional numerical model was developed for this purpose by extending an immiscible two-layer model with an additional source term, which accounts for turbulent mixing effects, namely the entrainment of fluid from the lower to the upper layer. The entrainment rate is quantified by an empirical equation as a function of the bulk Richardson number. A finite volume method based on an approximated Roe solver was used to solve the governing coupled system of partial differential equations. A comparison of numerical results with and without entrainment is presented to illustrate the influence of entrainment on both the salt-water intrusion length and lower layer dynamics. Furthermore, one example is given to demonstrate how entrainment terms may help to stabilize the numerical scheme and prevent a possible loss of hyperbolicity. Finally, the model with entrainment is validated by comparing the numerical results to field measurements
Vrsta sudjelovanja: Predavanje
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Međunarodna recenzija
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Građevinarstvo
Puni text rada: 891372.abstract_MSF_2017_Krvavica.pdf (tekst priložen 12. Ruj. 2017. u 07:58 sati)
URL Internet adrese: http://www.eccomas-msf-2017.eu/wp-content/uploads/2017/09/MSF-2017-ElectronicVersion.pdf
Upisao u CROSBI: Nino Krvavica (nino.krvavica@gradri.uniri.hr), 12. Ruj. 2017. u 07:58 sati



Verzija za printanje   za tiskati


upomoc
foot_4