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Pregled bibliografske jedinice broj: 899913

Časopis

Autori: Krvavica, Nino; Kožar, Ivica; Ožanić, Nevenka
Naslov: The relevance of turbulent mixing in estuarine numerical models for two-layer shallow water flow
Izvornik: Coupled Systems Mechanics (2234-2184) 7 (2018), 1; 95-109
Vrsta rada: članak
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.
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Emerging Sources Citation Index (ESCI) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Građevinarstvo
Puni text rada: 899913.csm0701007.pdf (tekst priložen 18. Sij. 2018. u 10:43 sati)
URL Internet adrese: http://www.techno-press.com/content/?page=article&journal=csm&volume=7&num=1&ordernum=7
http://www.techno-press.com/?page=container&journal=csm&volume=7&num=1
Broj citata:
Altmetric:
DOI: 10.12989/csm.2018.7.1.095
URL cjelovitog teksta: http://www.techno-press.com/content/?page=article&journal=csm&volume=7&num=1&ordernum=7
Google Scholar: The relevance of turbulent mixing in estuarine numerical models for two-layer shallow water flow
Upisao u CROSBI: Nino Krvavica (nino.krvavica@gradri.uniri.hr), 19. Lis. 2017. u 08:28 sati



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