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Pregledni rad

Analysis of the impact of winds, tide oscillations and density distribution on the sea exchange through culverts in the marinas as exemplified by the Ičići marina

Goran Lončar orcid id orcid.org/0000-0002-6466-3677 ; Građevinski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Dalibor Carević ; Građevinski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Damjan Bujak ; Građevinski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivana Bartolić ; Tehničko veleučilište u Zagrebu, Zagreb, Hrvatska
Gordana Beg Paklar ; Institut za oceanografiju i ribarstvo, Split, Hrvatska


Puni tekst: engleski pdf 626 Kb

str. 139-148

preuzimanja: 117

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Puni tekst: hrvatski pdf 626 Kb

str. 139-148

preuzimanja: 222

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Sažetak

The paper presents the results of the conducted 3D numerical simulations of the sea circulation and exchange with the aim to quantify the contribution of pipe culverts to the sea exchange from the marina area and the surrounding sea. In addition to wind action and tide oscillations, the numerical model also takes into account the spatial/temporal changes in temperature and salinity in the profiles of open boundaries of the model, culverts and the marina entrance. Initially, a marine of hypothetical geometric characteristics was analyzed – with a length of 300m, width of 150m and variable depth of 3 - 7m. The following elements were varied: the width of the marine entrance (25m and 50m), positions of pipe culverts (4 positions), wind direction and velocity (N, NE, E, SE, S, SW, W, NW; 1, 3, 5 Bf), geographical location (northern Adriatic – Rovinj; southern Adriatic – Dubrovnik) and the contribution of the sea density gradient. Following this, numerical simulations were conducted for the Ičići marina by taking into consideration the actual geometry of the protection facilities (breakwater), realistic oceanographic conditions (depth, sea level dynamics, sea s temperature and salinity) and wind action. Based on the obtained results, a practical methodology for selecting the positions of pipe culverts in the structure of the marina protective facility was also proposed.

Ključne riječi

pipe culvert, marina, the Adriatic, numerical model

Hrčak ID:

186167

URI

https://hrcak.srce.hr/186167

Podaci na drugim jezicima: hrvatski

Posjeta: 690 *