Artigos de Revista
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Energy rate balance applied to coastal engineering problems by using RANS-VoF models in numerical wave flumes 
Nowadays, the use of RANS-based models for simulating numerical wave flumes and studying coastal engineering structures is common and allows investigating accurately phenomena that occur in current/wavestructure interactions. Comprehension of energy transformations in these processes can support designers tooptimize the system. In this study, a methodology to evaluate the terms of the energy rate balance in coastalengineering problems is developed. The methodology is applied to the propagation of regular waves in numericalwave flumes, onshore oscillating water column wave energy converter integrated into a vertical breakwater, andtwo types of rubble-mound breakwaters. The direct determination of the energy rate due to viscous and urbulencelosses and the porous resistance in rubble-mound breakwaters are carried out by time integration insidethe computational domain. Besides, the reflected and transmitted energy rates in the flume are calculated bymeans of this methodology, instead of the standard gauge methods, commonly used in physical and numericalflumes. Complementary, studies may be carried out for random incident waves and the methodology can beapplied to 3D wave tanks.
Ano: 2025
Autor(es): Teixeira, P.; Didier, E.
Revista: Ocean Engineering
Editor: Elsevier
Keywords: Rubble-mound breakwater; Oscillating water column wave energy converter; Energy rate balance; Coastal engineering; Numerical wave flume; RANS models
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An assessment of 3D scanning methods in physical models
The evaluation of damage progression caused by wave action on physical models of rubble-mound breakwaters can be accomplished through two types of methods: quantifying the movements and falls of the resistant armor elements by visual inspection (the traditional, classical method) or determining the eroded volumes and depths between consecutive surveys of armor layers using sensors and photogrammetric methods (3D scanning methods). Of the latter, one may use techniques such as the so-called "Kinect", "Photogrammetry" and "LiDAR". The end-product of these techniques is, among others, point clouds, which allow obtaining three-dimensional surface models. In this paper, four of the latter techniques (3D scanning methods) are briefly described, and a comparison is made between them regarding their usability in current tests, their advantages and disadvantages, among themselves for a study case of the physical 3D model of the Ericeira breakwater. In evaluating survey quality across the four methods, RMSE (root mean square error) was employed to align obtained point clouds with ground control points (GCP). Notably, Photogrammetry, Kinect, and Azure techniques showed excellent RMSE values. Conversely, the LiDAR-derived-method cloud, using a smartphone with LiDAR sensor and 3dScanner app, fails to yield acceptable and accurate results for the research objectives of this paper.
Ano: 2024
Autor(es): Capitão, R.; Lemos, R.; Fortes, C. J. E. M.; Jónatas, R.
Editor: COSE
Keywords: 3D scans; Reconstruction Techniques; Damage Progression; Breakwater; Physical Modelling
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Analytical and numerical modelling of wave dissipation over rigid and flexible vegetation in a flume: Drag coefficient calibration
Data of wave dissipation over vegetation fields was collected from laboratory flume experiments, fordifferent vegetation and wave conditions. An analytical model and a numerical model are applied to estimatethe wave dissipation obtained in the experiments, through the calibration of the bulk drag coefficient (CD).Results and conclusions will analyse and compare each model behaviour and obtained CD values.
Ano: 2024
Autor(es): Reis, R.; Fortes, C. J. E. M.; Suzuki , T.
Editor: IARH EUROPE CONGRESS
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Deep Neural Network Enhanced Early Warning System for Ports Operations
Downtime of port terminals results in large economic losses and has a major impact on the overallcompetitiveness of ports. EarlyWarning Systems (EWS) are an effective tool to reduce ports
Ano: 2024
Autor(es): Pinheiro, L.; Fortes, C. J. E. M.; Gomes, A.
Editor: IARH EUROPE CONGRESS
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Development of a Bayesian network-based early warning system for storm-driven coastal erosion
Coastal hazards such as flooding and erosion can cause large economic and human losses. Under this threat, early warning systems can be very cost-effective solutions for disaster preparation. The goal of this study was to develop, test, and implement an operational coastal erosion early warning system supported by a particular method of machine learning. Thus, the system combines Bayesian Networks, and state-of-the-art numerical models, such as XBeach and SWAN, to predict storm erosion impacts in urbanized areas. This system was developed in two phases. In the development phase, all information required to apply the machine learning method was generated including the definition of hundreds of oceanic synthetic storms, modeling of the erosion caused by these storms, and characterization of the impact levels according to a newly defined eerosion iimpact index. This adimensional index relates the distance from the edge of the dune/beach scarp to buildings and the height of that scarp. Finally, a Bayesian Network that acted as a surrogate of the previously generated information was built. After the training of the network, the conditional probability tables were created. These tables constituted the ground knowledge to make the predictions in the second phase. This methodology was validated (1) by comparing 6-h predictions obtained with the Bayesian Network and with process-based models, the latest considered as the benchmark, and (2) by assessing the predictive skills of the Bayesian Network through the unbiased iterative k-fold cross-validation procedure. Regarding the first comparison, the analysis considered the entire duration of three large storms whose return periods were 10, 16, and 25 years, and it was observed that the Bayesian Network correctly predicted between 64% and 72% of the impacts during the course of the storms, depending on the area analyzed. Importantly, this method was also able to identify when the hazardous conditions disappeared after predicting potential consequences. Regarding the Regarding the second validation approach, second validation approach, the k-fold cross-validation procedure was applied to the peak of a set of varying storms and it demonstrated that the predictive skills were maximized (63%
Ano: 2024
Número Páginas:
1-15pp.
Autor(es): Garzon, J.L.; Ferreira, Ó.; PLOMARITIS, T.A.; Zózimo, A. C.; Fortes, C. J. E. M.; Pinheiro, L.
Revista: Coastal Engineering
Editor: Elsevier
Volume:
Vol 189 (104460).
Keywords: HIDRALERTA; Sandy beaches; Bayesian networks; Numerical modeling; Prediction system
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Development of a Bayesian network-based early warning system for storm-driven coastal erosion
Coastal hazards such as flooding and erosion can cause large economic and human losses. Under this threat, early warning systems can be very cost-effective solutions for disaster preparation. The goal of this study was todevelop, test, and implement an operational coastal erosion early warning system supported by a particularmethod of machine learning. Thus, the system combines Bayesian Networks, and state-of-the-art numericalmodels, such as XBeach and SWAN, to predict storm erosion impacts in urbanized areas. This system wasdeveloped in two phases. In the development phase, all information required to apply the machine learningmethod was generated including the definition of hundreds of oceanic synthetic storms, modeling of the erosioncaused by these storms, and characterization of the impact levels according to a newly defined eerosion iimpactindex. This adimensional index relates the distance from the edge of the dune/beach scarp to buildings and theheight of that scarp. Finally, a Bayesian Network that acted as a surrogate of the previously generated informationwas built. After the training of the network, the conditional probability tables were created. These tablesconstituted the ground knowledge to make the predictions in the second phase. This methodology was validated(1) by comparing 6-h predictions obtained with the Bayesian Network and with process-based models, the latestconsidered as the benchmark, and (2) by assessing the predictive skills of the Bayesian Network through theunbiased iterative k-fold cross-validation procedure. Regarding the first comparison, the analysis considered theentire duration of three large storms whose return periods were 10, 16, and 25 years, and it was observed that theBayesian Network correctly predicted between 64% and 72% of the impacts during the course of the storms,depending on the area analyzed. Importantly, this method was also able to identify when the hazardous conditionsdisappeared after predicting potential consequences. Regarding the Regarding the second validationapproach, second validation approach, the k-fold cross-validation procedure was applied to the peak of a set ofvarying storms and it demonstrated that the predictive skills were maximized (63%
Ano: 2024
Autor(es): Garzon, J.L.; Ferreira, O.; PLOMARITIS, T.A.; Zózimo, A. C.; Fortes, C. J. E. M.; Pinheiro, L.
Revista: Coastal Engineering
Editor: Elsevier
Volume:
189 (2024) 104460.
Keywords: HIDRALERTA; Sandy beaches; Bayesian networks; Numerical modeling; Prediction system
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Experimental investigation of wave severity and mooring pretension on the operability of a moored tanker in a port terminal
This paper investigates the influence of sea severity and mooring line pretension configuration on the operabilityof a moored vessel at a modified berthing site inside a port. A physical model was constructed to replicate thenew layout of the port of Leix
Ano: 2024
Autor(es): Abdelwahab, H.S.; Pinheiro, L.; Santos, J. A.; Fortes, C. J. E. M.; Guedes Soares, C.
Revista: Ocean Engineering
Editor: Elsevier
Volume:
291 (2024) 116243.
Keywords: Mooring pretension; Moored ship; Ship motions; Port downtime; Ship operability; Physical modelling
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Experimental study of an onshore dual chamber oscillating water column device
A wave flume is used to study a scaled model of a stepped bottom dual-chamber Oscillating Water Column (OWC) installed onshore. Compared to traditional single-chamber OWCs, the use of dual-chambers is expected to widen the range of sea states in which the OWC is more efficient, and the step, in front of the first chamber, boosts the capturing energy capacity of the device. The Power Take-Off (PTO) system is modelled as an air opening in the pneumatic chambers. Several experiments combining regular incident waves and PTO damping conditions are performed. Results of the amplitudes of the free surface elevations inside the chambers show that the device can amplify the incident wave amplitude up to 1.57 times in chamber 2. Results of the primary efficiency show that the device is highly dependent on the PTO damping characteristics and can reach around 40% for a wide range of wave periods. Results of the reflection analysis show that the reflection coefficient is also dependent on the PTO damping characteristics but remain lower than 0.6 for all the studied cases. Sloshing phenomenon (mostly in the cross-section direction) was observed for a wavelength close to the cross-section dimension, impacting negatively on the device pneumatic performance.
Ano: 2024
Número Páginas:
16p..
Autor(es): Gadelho, J.; REZANEJAD, K.; Guedes Soares, C.; Santos, J. A.; Anastas, G.; Fortes, C. J. E. M.
Revista: Ocean Engineering
Editor: Elsevier
Volume:
Volume 300 (117240).
Keywords: Reflection coefficients; Efficiency improvement; Breakwater; Experiments; Oscillating water column
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Experimental study on drag coefficient of flexible vegetation under non-breaking waves
Laboratory experiments of wave propagation over rigid and flexible vegetation fields, with the same configurations, were conducted to understand the effect of vegetation flexibility on the drag coefficient (CD). The direct method and the least squares method (LSM), based on force and flow measurements, are applied to calculate the CD in the experimental conditions. The formulations of both methods are extended to estimate the CD for flexible vegetation cases. A video analysis was performed to account for the swaying motion. Typically, wave dissipation is lower for flexible than for rigid vegetation of the same configuration, under the same flow condition. Therefore, a proportional effect in the corresponding CD results, obtained from common CD calibration to wave dissipation without considering vegetation motion, is usually observed. However, the present results show that although the wave dissipation was 34% lower for flexible relative to rigid vegetation, the respective CD values were close. CD estimations considering vegetation motion and inertia suggest that CD of flexible vegetation was up to 13% higher relative to rigid vegetation. Accounting for inertia reduced the CD for rigid vegetation up to 7%, while raised the CD for flexible vegetation up to 13%.
Ano: 2024
Número Páginas:
14p..
Autor(es): Reis, R.; Fortes, C. J. E. M.; Rodrigues, J.; HU, Z.; Suzuki , T.
Revista: Ocean Engineering
Editor: Elsevier
Volume:
Volume 296.
Keywords: Wave dissipation; Inertia; Vegetation motion; Flexible vegetation; Drag coefficient
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Exploring Wave
Aquatic vegetation in the littoral zone plays a crucial role in attenuating wave energy andprotecting coastal communities from hazardous events. This study contributes to the developmentof numerical models aimed at designing nature-based coastal defense systems. Specifically, a novelnumerical application for simulating wave
Ano: 2024
Autor(es): El Rahi, J.; Martinez-Estevez, I.; Reis, R.; Tagliafierro, B.; Dominguez, J.M.; Crespo, A.J.C.; Stratigaki, V.; Suzuki, T.; Troch, P.
Editor: MDPI
Keywords: Project chrono; DualSPHysics; SPH-FEA coupling; Fluid
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Comunicações
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Effect of speed and depth variation on the interaction between two ships
This paper analyses the influence of water depth and speed variation in the hydrodynamic interaction between a navigating ship and a stationary one, using physical and numerical modelling. The passing ship is a self-propelled scale model of the
Ano: 2018
Número Páginas:
91-94pp.
Autor(es): Pedro, F.; Santos, J. A.; Pinheiro, L.; Fortes, C. J. E. M.; Hinostroza , M.
Editor: Instituto Hidrográfico
Keywords: Ship motion; Ship interaction; Numerical model; Physical model; Wake waves
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Estudos de agitação e ressonância no porto de Leixões
Com vista a otimizar a geometria do prolongamento do quebra-mar exterior do Porto de Leixões, bem como avaliar os impactes desse prolongamento nas condições de agitação na praia de Matosinhos, efetuou-se a caraterização da agitação marítima na zona de estudo, considerando várias soluções alternativas para o quebra-mar. A presente comunicação descreve os estudos realizados em modelo numérico para: a) o estabelecimento de regimes de agitação no exterior do porto, b) a caracterização da agitação e ressonância no interior do porto; c) a avaliação dos impactes do prolongamento do quebra-mar nas condições de agitação da praia de Matosinhos.
Ano: 2018
Número Páginas:
474-477pp.
Autor(es): Fortes, C. J. E. M.; Neves, M. G.; Pinheiro, L.; Capitão, R.; Lopes, H.
Editor: Instituto Hidrográfico
Keywords: Modelação numérica; Ressonância; Agitação marítima; Porto de Leixões
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Evolução do dano num quebra-mar de taludes em cenários de alterações climáticas
No âmbito do projeto HYDRALAB+ (H2020-INFRAIA-2014-2015), foi realizado no LNEC um conjunto de ensaios em modelo físico bidimensional (2D) de um perfil de um quebra-mar de talude em enrocamento, construído à escala geométrica 1:30, para diferentes condições de agitação marítima e níveis de maré correspondentes a cenários de alterações climáticas. Estas experiências tinham como objetivo analisar o dano, o espraiamento e o galgamento, nesses cenários.Em paralelo, na Faculdade de Engenharia da Universidade do Porto (FEUP), e em colaboração com Deltares, NL, foram realizados testes com a mesma configuração do quebra-mar, mas utilizando um modelo físico tridimensional (3D), à escala geométrica 1:35. Os resultados obtidos permitiram analisar a evolução do dano no manto resistente do quebra-mar (talude anterior, talude posterior e cabeça), assim como o galgamento, para condições de teste com e sem sobrelevação do nível médio da água do mar, considerando ou não a reconstrução do talude do quebramar entre testes consecutivos de uma mesma série de testes. Foram também realizados testes com ondas multidirecionais.O presente trabalho incide sobre a análise da evolução do dano para as diferentes sequências de tempestade em cenários de alterações climáticas. O dano é avaliado com base no tradicional método de contagem de blocos removidos e ainda com base no parâmetro adimensional do dano, S recorrendo a técnicas estereofotogramétricas.Em termos gerais, concluiu-se que o dano era mais elevado na proximidade do nível de repouso da água e que aumentava com a altura de onda significativa. Os danos foram, em geral, menores nos testes com ondas multidirecionais. Observaram-se, ainda, diferenças significativas entre os testes com danos cumulativos e com reconstrução do quebra-mar após cada teste. Nos ensaios realizados no LNEC com aumento do nível médio do mar e alternância entre dois níveis de maré, verificou-se um ligeiro aumento do dano devido ao aumento faixa onde ocorre erosão do perfil.
Ano: 2018
Número Páginas:
16p.
Autor(es): Lemos, R.; Fortes, C. J. E. M.; Mendonça, A. C.; Rosa-Santos, P.; Taveira-Pinto, F.; Almeida, E.; Hofland, B.
Editor: APRH
Keywords: Modelação física; Alterações climáticas; Evolução do dano
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Experimental measurments of movements and mooring forces of a ship under wave action
This paper presents a series of tests on a reduced physical model to reproduce the behavior of a moored oil tanker. The measurement techniques used and all the instrumentation are presented. Data analysis techniques are also presented. The objective of the tests is the characterization of the incident marine agitation and the response of the ship, including the movements according to 6 degrees of freedom and the forces in the mooring system.The tests were carried out in one of the tanks of the Marine Hydraulic Pavilion of the National Laboratory of Civil Engineering, using for the generation of marine agitation a batter capable of generating irregular waves.The vessel used is a scale model of the "Esso Osaka" tanker with a length of 3.43 m, a width of 0.53 m and a maximum draft of 0.23 m and is lying in terminal A of the Port of Leixões. The entire port area was built at 1:80 scale, including bathymetry and port structures. The waves are generated outside the port to the bathymetric of -20m ZHL (zero hydrographic of Leixões). Several sea states were simulated with irregular waves with periods between 10s and 16s and significant wave heights between 2m and 6m.The vessel is instrumented with an optical motion capture system according to the six degrees of freedom, composed of 4 cameras of high resolution that allows to follow the position of several targets placed in the ship and 6 load cells to measure the forces in the moorings and defenses. The measurement of free surface elevation was performed with a set of resistive probes and an ADV.
Ano: 2018
Número Páginas:
221-222pp.
Autor(es): Pinheiro, L.; Pedro, F.; Abdelwahab, H.S.; Hinostroza , M.; Santos, J. A.; Fortes, C. J. E. M.
Editor: FEUP
Keywords: Movement and force measurement systems; Marine agitation; Ship movements; Physical model
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Galgamento em estruturas de proteção marginal face à subida de nível do mar
O sistema de proteção costeira da Cova-Gala, a sul da Figueira da Foz, inclui defesas longitudinais aderentes datadas de 1975 que têm como objetivo proteger a povoação da ação do mar. Ao longo dos anos têm-se registado eventos de galgamento destas obras que colocam em risco pessoas e bens. Face a uma possível subida do nível do mar na costa oeste portuguesa, é importante analisar a sua influência no agravamento do galgamento destas estruturas. Para tal, calculou-se o galgamento com a fórmula de Mase et al. (2013) utilizando as condições de agitação ao largo e níveis de mar obtidas de modelos de hindcast. Calculou-se ainda o caudal galgado para as mesmas condições de agitação e diferentes projeções de subida do nível do mar. A comparação de resultados permitiu concluir sobre o efeito da subida do nível do mar no galgamento para os valores considerados.
Ano: 2018
Número Páginas:
455-458pp.
Autor(es): Pires, D.; Neves, M. G.; Oliveira, F. S. B. F.
Editor: Instituto Hidrográfico
Keywords: Subida do nível do mar; Estruturas de proteção marginal; Galgamento
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Influence of wave conditions in damages at scale model tests of rubble-mound breakwaters under sea level rising
Usually, physical model tests support the design of breakwaters considering different incident wave conditions, including extreme events. This paper describes two-dimensional physical model tests of a rock armour breakwater, performed at LNEC´s experimental facilities, under the framework of the HYDRALAB+ project. The goal of the present work is to evaluate damage evolution under wave conditions resulting from future climate change scenarios. Test results are presented in terms of the non-dimensional damage parameter (S) and of the percentage of displaced armour units (D). The data analysis is focused on the cumulative damage progression related with wave parameters as Hmax and H2%, for the imposed storm sequences. The use of the stability number (Ns), considering both H=Hs and H=H2% revealed a good agreement in order to characterize its relationship with damage evolution. On the other hand, the use of Hmax revealed a decrease of the linearity on damage evolution.
Ano: 2018
Número Páginas:
470-473pp..
Autor(es): Lemos, R.; Neves, M. G.; Fortes, C. J. E. M.; Mendonça, A. C.; Ramos, A.; Capitão, R.; Reis, M. T. L. G. V.
Editor: Instituto Hidrográfico
Keywords: Storm sequences; Climate change; Damage evolution; Physical model
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Influence of wave conditions in damages at scale model tests of rubble-mound breakwaters under sea level rising
Usually, physical model tests support the design of breakwaters considering different incident wave conditions, including extreme events. This paper describes two-dimensional physical model tests of a rock armour breakwater, performed at LNEC´s experimental facilities, under the framework of the HYDRALAB+ project. The goal of the present work is to evaluate damage evolution under wave conditions resulting from future climate change scenarios. Test results are presented in terms of the non-dimensional damage parameter (S) and of the percentage of displaced armour units (D). The data analysis is focused on the cumulative damage progression related with wave parameters as Hmax and H2%, for the imposed storm sequences. The use of the stability number (Ns), considering both H=Hs and H=H2% revealed a good agreement in order to characterize its relationship with damage evolution. On the other hand, the use of Hmax revealed a decrease of the linearity on damage evolution.
Ano: 2018
Número Páginas:
470-473pp.
Autor(es): Lemos, R.; Neves, M. G.; Fortes, C. J. E. M.; Mendonça, A. C.; Ramos, A.; Capitão, R.; Reis, M. T. L. G. V.
Editor: Instituto Hidrográfico
Keywords: Storm sequences; Climate change; Damage evolution; Physical model
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Modelação física do espraiamento e do galgamento de um quebra-mar de talude em cenários de alterações climáticas
Nesta comunicação descreve-se a análise bidimensional (2D) em modelo físico do espraiamento e galgamento de um quebra-mar de talude, em cenários de alterações climáticas, realizado no âmbito do projeto HYDRALAB+ (H2020-INFRAIA-2014-2015). Com efeito, a subida do nível médio do mar, bem como o aumento da intensidade e frequência de temporais, previsível em tais cenários, pode dar origem a fenómenos de espraiamento e galgamento das estruturas de proteção costeiras e portuárias, cada vez mais intensos e frequentes, tornando as estruturas mais vulneráveis, bem como as zonas por elas protegidas.Assim, num canal de ondas irregulares do LNEC, foi construído um perfil de um quebra-mar de enrocamento, à escala 1:30, e definido um programa de 15 ensaios, considerando valores de altura de onda significativa, período de pico e níveis de água representativos de condições de agitação incidente extremas, a que se poderão associar os referidos cenários de alterações climáticas.Para cada ensaio, efetuaram-se medições da elevação da superfície livre, do espraiamento e do caudal médio galgado. Os valores experimentais de espraiamento e de galgamento foram comparados com os previstos pelas formulações empíricas do EurOtop, para um dos cenários de alterações climáticas testado.
Ano: 2018
Número Páginas:
11p.
Autor(es): Mendonça, A. C.; Lemos, R.; Fortes, C. J. E. M.; Capitão, R.; Neves, M. G.; Reis, M. T. L. G. V.
Editor: APRH
Keywords: Galgamento; Espraiamento; Fórmulas empíricas; Modelação física; Alterações climáticas
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Observing and monitoring maritime works through the use of the new OSOM+ methodology
This paper describes a programme under the responsibility of LNEC for the systematic observation and monitoring of maritime works, termed OSOM+, that has successfully been applied to an extensive number of maritime structures on the Portuguese mainland coast and abroad.The OSOM+ programme comprises the following four main components for each structure: Periodic visual inspections by a trained technician; Periodic aerial inspections with a UAV/drone; The ANOSOM-GIS database, to store and/or query obtained information, as well as to diagnose present, evolution and risk conditions; A mobile, portable, application, for real-time input and visualization of the database information.This recently updated methodology encompasses a number of tools and functionalities that are illustrated in this paper with applications to a real case scenario, the Ericeira
Ano: 2018
Número Páginas:
2035-2050pp.
Autor(es): Fortes, C. J. E. M.; Capitão, R.; Henriques, M. J.; Lemos, R.; Neves, M. G.; Reis, M. T. L. G. V.; Silva, L. G.
Editor: FURG
Keywords: Ericeira
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Physical modelling of motions and forces on a moored ship at the Leixões port
This paper describes the physical model, experimental setup and tests performed at the Portuguese Civil Engineering Laboratory (LNEC), to study the motions and forces of a moored ship at the Leixões port, for different sea states in irregular waves. The tests were carried out at one of the wave tanks of LNEC, where the Leixões port layout was implemented at scale 1:80 with the detailed model similar to the prototype bathymetry and surrounding structures. The moored ship is a 3.43 m long scale model of the well-known
Ano: 2018
Número Páginas:
2501-2517pp.
Autor(es): Santos, J. A.; Pinheiro, L.; Abdelwahab, H.S.; Pedro, F.; Fortes, C. J. E. M.; Capitão, R.; Hinostroza , M.; Guedes Soares, C.
Editor: FURG
Keywords: Physical modelling; Irregular waves; Fenders; Mooring loads; Ship motions
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Capítulos de Livros
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Multi-functional artificial reefs for coastal protection
N/A
Ano: 2009
Número Páginas:
153-210 pp.
Autor(es): Voorde, M.; Antunes do Carmo, J.; Neves, M. G.
Editor: Ch. A. Hudspeth, T. E. Reeve
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Teses de Doutoramento
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Trapped-mode propagation along irregular coasts
N/A
Ano: 1999
Número Páginas:
159 p.
Autor(es): Santos, J. A.
Editor: ******
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Probabilistic Assessment of the Safety of Coastal Structures
N/A
Ano: 1998
Número Páginas:
594 p.
Autor(es): Reis, M. T.
Editor: ******
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Unsteady Nearshore Currents on Longshore Varying Topographies
N/A
Ano: 1998
Número Páginas:
346 p.
Autor(es): Sancho, F. E.
Editor: ******
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Simulação da agitação irregular. Técnicas matemáticas
N/A
Ano: 1973
Autor(es): Carvalho, M. M.
Editor: ******
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Relatórios
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D1.1: Analysis of past extreme events, lessons learned ans SoA models V1
C2IMPRESS is a multi-disciplinary project which aims to enhance understanding and public awareness on multi-hazard risk, based on innovative models, methods, frameworks, tools and technologies to develop decision-making platforms with a fine-grained spatio-temporal data to better assess impacts, vulnerability and resilience on natural hazards. This Report is the Deliverable 1.1 and belongs to Work Package 1, which is mainly addressed to identify the past climate and physical processes that underlie natural disaster events and their consequences
Ano: 2023
Autor(es): Moragues, A.; Estrany, J.; Alves, E.; Zózimo, A. C.; Leitão, T. E.; Ruiz, M.; Oliveira, M. M.; Sfetsos, A.; Fernandes, T. F.
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Demonstration and technical tours plan
A major objective of TRA LISBON 2022 Conference is to boost research and innovation capacity for the transport sector, throughout a full innovation cycle, from idea to market. Having this in view, the project
Ano: 2022
Autor(es): Batista, F. A.; Marecos, V.; Antunes, M. L.; Macedo, A. L.; Freire, A. C.; Capitão, R.; Arsénio, E.; Maia, L.
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Demonstration submission and selection guidelines
The demonstration area will be one of the main focus points of TRA LISBON 2022, presenting multifunctional spaces and being prepared to receive a large number of different types of on-site demonstrations (indoor and outdoor). On-line demonstrations will also be an option, allowing for the widest possible coverage of access for all the participants.The dedicated areas will allow for interactive demonstrations of technological innovations to be carried out by and for industry partners, researchers, and other stakeholders. Demonstrations are an excellent opportunity to introduce conference attendees in an engaging way, as well as to promote new contacts and promising business.
Ano: 2022
Autor(es): Freire, A. C.; Arsénio, E.; Macedo, A. L.; Antunes, M. L.; Capitão, R.; Belinha, M.
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Technical tours organization criteria and procedures report
According to the CSA project plan, WP5.2 task objective is to organize technical tours that feature attractive and interactive showcases aiming at engaging participants into novel technologies for all transport modes and enabling stakeholders and their companies to disseminate and even sell their products and applications to all interested parties.
Ano: 2022
Autor(es): Capitão, R.; Macedo, A. L.; Arsénio, E.; Antunes, M. L.; Freire, A. C.
Editor: TRA LISBON 2022
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Data Repository Rules. Deliverable 10.4
This report is part of HYDRALAB+ Work Package 10, which seeks to strengthen the coherence of experimental hydraulic and hydrodynamic research undertaken by the HYDRALAB+ partner organisations. It outlines the work carried out by Samui Design & Management Ltd, supported by HR Wallingford, in relation to the development of a data repository structure that can be adopted by participants of the HYDRALAB+ project.
Ano: 2018
Autor(es): Mendonça, A. C.; Fortes, C. J. E. M.; Neves, M. G.; Capitão, R.; Lemos, R.; Reis, M. T. L. G. V.
Keywords: Data from physical modeling; Zenodo; Data repository structure
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Data Storage Report. RECIPE Task 8.2: Overtopping events in breakwaters under climate change scenarios
Reliable prediction of wave run-up/overtopping and structure damage is a key task in the design and safety assessment of coastal and harbor structures. Run-up/overtopping and damage must be below acceptable limits, both in extreme and in normal operating conditions, to guarantee the stability of the structure and the safety of people and assets on and behind the structure. The mean-sea-level rise caused by climate change and its effects on wave climate may increase the number and intensity of run-up/overtopping events and make the existing coastal/harbor structures more vulnerable to damage.Accurate estimates, through physical modelling, of the statistics of overtopping waves for a set of climate change conditions, are needed. The research project HYDRALAB+ (H2020-INFRAIA-2014-2015) gathers an advanced network of environmental hydraulic institutes in Europe, which provides access to a suite of environmental hydraulic facilities. They play a vital role in the development of climate change adaptation strategies, by allowing the direct testing of adaptation measures and by providing data for numerical model calibration and validation. The use of physical (scale) models allows the simulation of extreme events as they are now, and as they are projected to be under different climate change scenarios.The enclosed dataset refers to the experimental work developed at LNEC within HYDRALAB+ and considers 2D damage and overtopping tests for a rock armor slope, with four different approaches to represent storms. Data of free surface elevation, overtopping and damage is presented.
Ano: 2018
Autor(es): Fortes, C. J. E. M.; Mendonça, A. C.; Lemos, R.; Neves, M. G.; Reis, M. T. L. G. V.; Capitão, R.
Keywords: Climate change; Overtopping; Data repository
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Facilitating the re-use and exchange of experimental data. Task 10.1 Critical review. D10.2 Critical Review of data flux between laboratory models, numerical models and field case studies
The HYDRALAB+ project is aimed at strengthening the coherence of experimental hydraulic and hydrodynamic research undertaken across its partner organisations. This report is D10.2 of the HYDRALAB+ project, entitled
Ano: 2018
Autor(es): Mendonça, A. C.; Fortes, C. J. E. M.; Neves, M. G.; Capitão, R.; Lemos, R.; Reis, M. T. L. G. V.
Keywords: Field data; Numerical modeling data; Physical modeling data; Data flux
Info
Facilitating the re-use and exchange of experimental data. Task 10.2 Data Standards and Licenses. D 10.3 Data Standards Report
The HYDRALAB+ project is aimed at strengthening the coherence of experimental hydraulic and hydrodynamic research undertaken across its partner organisations. This report is D10.3 of the HYDRALAB+ project, entitled
Ano: 2018
Autor(es): Mendonça, A. C.; Fortes, C. J. E. M.; Neves, M. G.; Capitão, R.; Lemos, R.; Reis, M. T. L. G. V.
Keywords: Data management options; Experimental data; Data formats
Info
Protocols for representing variability and unsteadiness in flume facilities. Deliverable Number 8.2
This deliverable is related to task 8.2
Ano: 2018
Autor(es): Mendonça, A. C.; Fortes, C. J. E. M.; Lemos, R.; Capitão, R.; Neves, M. G.; Reis, M. T. L. G. V.
Keywords: Extreme events; Climate change; Variability in flume facilities
Info
Sistema de previsão, alerta e gestão de riscos causados pela agitação marítima - Relatório inicial Arquitetura e características gerais do sistema para os portos de Madalena do Pico, São Roque do Pi
Neste relatório inicial são apresentadas a arquitetura e as caraterísticas gerais dos protótipos do sistema de previsão, alerta e gestão de riscos causados pela agitação marítima para os portos de Madalena do Pico, São Roque do Pico e Praia da Vitória. Os três protótipos em desenvolvimento têm por base uma arquitetura semelhante, com características distintas, nomeadamente no que respeita à localização dos dados de base, às malhas computacionais utilizadas e às características físicas das fronteiras, tanto no plano horizontal (interface terra-mar), como no vertical (batimetria dos fundos). Caracteriza-se o layout geral dos portos, bem como a sua morfologia e operabilidade.
Ano: 2018
Autor(es): Pinheiro, L.; Fortes, C. J. E. M.; Reis, M. T.; Poseiro, P.
Keywords: Porto de Praia da Vitória; Porto de São Roque do Pico; Porto de Madalena do Pico; Agitação marítima; Alerta e gestão de riscos; Sistema de previsão
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Outros
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Modelo Matemático de Propagação e Deformação de Ondas Marítimas em Zonas Costeiras - Proposta de Projecto de Investigação apresentado ao Programa de Intervenção nos Laboratórios do Estado (MCT-FCT),
N/A
Ano: 1998
Número Páginas:
9 p.
Autor(es): Covas, J. A.; Fortes, C. J. E. M.
Editor: ******
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Relato da missão a Bruxelas (24 a 26 de Março de 1998) para participação na 8ª Reunião da Acção Concertada Added Value Services in VTMIS do Programa Comunitário de I&D TRANSPORTS . Relatório efectu
N/A
Ano: 1998
Número Páginas:
4 p.
Autor(es): Covas, J. A.
Editor: ******
Info
Relato da missão a Bruxelas (28 a 30 de Outubro de 1998) para participação na 10ª Reunião da Acção Concertada Added Value Services in VTMIS do Programa Comunitário de I&D TRANSPORTS . Relatório efe
N/A
Ano: 1998
Número Páginas:
3 p.
Autor(es): Covas, J. A.
Editor: ******
Info
Short-term stochastic numerical and physical simulation of sea waves - Proposta de Projecto de Investigação apresentada ao Programa PRAXIS XXI, na área científica de Engenharia Civil
N/A
Ano: 1998
Número Páginas:
53 p.
Autor(es): Capitão, R.; Pires Silva, A.; Medina, J. R.; Carvalho, M. M.
Editor: ******
Info
Transformações Não-Lineares de Ondas Marítimas em Zonas Costeiras - Proposta de Projecto de Investigação apresentada ao Programa PRAXIS XXI , na área científica de Engenharia Civil
N/A
Ano: 1998
Número Páginas:
50 p.
Autor(es): Covas, J. A.; Fortes, C. J. E. M.
Editor: ******
Info
V Programa Quadro da União Europeia. Preparação da discussão dos Programas Específicos. Documento de trabalho da Comissão (COM (97) 553 Final). Grupo de Trabalho 6 Sustainable Mobility and Intermod
N/A
Ano: 1998
Número Páginas:
2 p.
Autor(es): Covas, J. A.
Editor: ******
Info
Valores extremos da agitação marítima no Algarve - Proposta de Projecto de Investigação apresentado ao Programa de Intervenção nos Laboratórios do Estado (MCT-FCT), sub-projecto Valorização e Protec
N/A
Ano: 1998
Número Páginas:
11 p.
Autor(es): Carvalho, M. M.; Capitão, R.
Editor: ******
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Departamento de Hidráulica e Ambiente
