Patos Lagoon is a very dynamic environment presenting hydrodynamic fluctuations from synoptic to decadal timescales. Thus, understanding the processes that determine long term variability fundamental for correct coastal planning and management of this region. The main objective study understand how freshwater discharge tributaries controls estuarine hydrodynamics Lagoon, when considering Two numerical simulations were carried out using TELEMAC3D model, former 1940 1973 year (simulation A),...

This paper presents a methodology that allows the numerical simulation of realistic sea waves, called WaveMIMO methodology, which is based on imposition transient discrete data as prescribed velocity finite volume computational model developed in Fluent software. These are obtained by using spectral wave TOMAWAC, where spectrum converted into series free surface elevations treated and processed propagation velocities horizontal (x) vertical (z) directions. The imposed boundary conditions...

The wave energy availability has become a field of intensive research around the world. In this sense, study aims to estimate climate at most energetic spots on South-Southeastern Brazilian Shelf (SSBS). To achieve goal, sea state model TOMAWAC was used simulate 18 years conditions SSBS. results showed that sites Santa Marta cape and Ilhabela are quite similar, with mean height 1.4 m period 8.5 s along climatological year. Farol island, other hand, higher averages, 1.7 8.9 for period,...

The focus on renewable energy sources the last few decades has pushed studies wave availability. In this sense, study aims to determine annual characteristics of climate South-Southeastern Brazilian Shelf (SSBS) improve comprehension climate, as well as, give an insight more energetic coastal spots in area. To accomplish that, sea state model TOMAWAC was used simulate 18 years conditions SSBS which were later converted a single year, representative climate. results showed strong pattern...

The Patos Lagoon coastal plume is a small-scale outflow that strongly controlled by meteorological tides. However, the riverine discharge of lagoon subject to high decadal variability. Hence, amount alters scale this and its effects over inner shelf environment. This study uses hydrodynamic simulations Lagrangian model estimate spreading under two different conditions.Through parameters, we characterized contrasts structure between low conditions. During strong regime, width thickness are...

Global electric energy demand is constantly growing, consequently leading towards the usage of renewable sources reducing pollution and increasing sustainability. The ocean a poorly explored source; thus, to evaluate Brazilian wave budget, this study investigated mean behaviour power rate on south-southeastern Shelf as well analysed temporal variability at most energetic locations near coast. Three were examined, namely Laguna, Ilhabela Farol Island, based criteria high means small standard...

Numerical models have been widely used to simulate and predict the behavior transport of oil spills in marine environments. Their is governed by physical, chemical biological processes which are related hydrocarbon properties, hydrodynamic weather conditions, other environmental variables. The interactions particles were evaluated simulations reproducing two recorded northern part Southern Brazilian Shelf (SBS). numerical performed using ECOS (Easy Coupling Oil System) model coupled...

Computational modeling has become a prominent tool to simulate physical processes for research and development projects. The coastal region of southern Brazil is very susceptible oil spill accidents. Currently, intensively transported in the due presence Rio Grande Harbor, Transpetro Waterway Terminal (Petrobras) Riograndense S/A Oil Refinery. Therefore, simulations under ideal navigation conditions ships with potentially polluting loads are important because their use can reduce spills...

The application of marine current turbines for electricity generation could offer a distinct advantage over other renewable energy sources due to the regular and predictable nature this resource. This paper details Analytical Hierarchy Process (AHP) as possible tool decision makers better understand environment impacts turbines. best areas generating from currents were found using tridimensional model (TELEMAC3D). In addition applying conversion module, these regions also evaluated...

The analysis of wave effects above salinity is important in order to define mixing processes and their potential change density gradients, since action the region Patos Lagoon plume highly dynamic. This paper aims evaluate influence waves on pattern adjacent continental shelf. Constantly marked by tides circulation variations, changing from flood ebb tide, stands as a major parameter for analysis. study based hydrodynamic numerical modeling experiments using TELEMAC3D model generated wind...

Beaches are suffering morphological changes due the interaction between energetics components and local sedimentary supply imbalance. The understanding of wave climate is an essential source information for composition coastal planning projects. main goal this work to estimate longshore sediment transport (LST) in various sectors Brazilian Coast, identify annual average its dominant direction. For study was considered period 1979 2015, applying computational modeling investigate waves...

As marine renewable resources begin to become a feasible energy source, it becomes crucial investigate the nearshore impact of hydrodynamic and morphodynamic processes. part implementation turbines in numerical modeling environment Telemac-3D Sisyphe modules, we conducted 10-year run evaluate impacts flow. We used five criteria define viable locations. Turbines sites were added conversion model coupled into order develop properly flow changes towards process. The results revealed that three...

Abstract The freshwater-influenced region of the Patos Lagoon discharge to Southern Brazilian Shelf (SBS) is a complex fluid dynamics. Seasoning and synoptic variable winds coastal current conditions create an alternating flow pattern. aim this paper was investigate occurrence persistent coherent structures in environment. A numerical approach chosen describe main hydrodynamic features during climatological year. open-source finite-element code Telemac-Mascaret applied three-dimensional...