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Scientific paper - Original scientific paper
NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS
Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS, 21 (2020), 21; 55-66. https://doi.org/10.13167/2020.21.5
Bartolić, Ivana; Lončar, Goran; Bujak, Damjan; Carević, Dalibor

Institutional repository: Repository of the Faculty of Civil Engineering, University of Zagreb

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Bartolić, I., Lončar, G., Bujak, D. & Carević, D. (2020). NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS. Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS, 21. (21), 55-66. doi: 10.13167/2020.21.5

Bartolić, Ivana, et al. "NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS." Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS, vol. 21, no. 21, 2020, pp. 55-66. https://doi.org/10.13167/2020.21.5

Bartolić, Ivana, Goran Lončar, Damjan Bujak and Dalibor Carević. "NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS." Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS 21, no. 21 (2020): 55-66. https://doi.org/10.13167/2020.21.5

Bartolić, I., et al. (2020) 'NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS', Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS, 21(21), pp. 55-66. doi: 10.13167/2020.21.5

Bartolić I, Lončar G, Bujak D, Carević D. NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS. Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS [Internet]. 2020 [cited 2024 November 25];21(21):55-66. doi: 10.13167/2020.21.5

I. Bartolić, G. Lončar, D. Bujak and D. Carević, "NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS", Electronic journal of the Faculty of Civil Engineering Osijek - e-GFOS, vol. 21, no. 21, pp. 55-66, 2020. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:237:058270. [Accessed: 25 November 2024]

Metadata
Title (english)NUMERICAL INVESTIGATIONS OF FLUSHING TIME IN SMALL MARINAS
AuthorIvana Bartolić
AuthorGoran Lončar
AuthorDamjan Bujak
AuthorDalibor Carević
Author's institutionUniversity of Zagreb
Faculty of Civil Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
This paper presents the results of 2D and 3D numerical simulations of sea circulation and water mass exchange for a marina with hypothetical dimensions (L/B=2 and L/B=0.5) to calculate the return flow factor. The return flow factor b was analyzed in relation to the marina entrance width, sea current velocity outside the marina (0, 1, 2, and 5 cm/s) and the sea surface level oscillation dynamics. The basic comparative parameter is the e-flushing time, Tf. The intensity of forced circulation is calculated to achieve time Tf of less than 10 days. The impact of the wind field on the e- flushing time for different marina widths was analyzed using a 3D numerical model. The numerical simulation results indicate that the e-flushing time Tf depends on the amplitude of the tidal signal, secondary to the width of the marina inlet, and the smallest amount on the velocity field in the outer region. Conversely, the return flow factor b depends on the width of the marina entrance, less on the tidal signal amplitude, and least on the current velocity outside the marina if currents are ≥ 1 cm/s. Forced circulation of 1 m3/s is only required for the marina with a smaller tidal amplitude (position Dubrovnik) to achieve Tf<10 days. If at the observed location wind is a dominant sea circulation generator, a wider marina entrance will allow faster sea exchange.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleElectronic journal of the Faculty of Civil Engineering Osijek - e-GFOS
Numberingvol. 21, no. 21, pp. 55-66
e-ISSN1847-8948
DOIhttps://doi.org/10.13167/2020.21.5
URN:NBNurn:nbn:hr:237:058270
Publication2020
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-09-05 06:39:44