Dr. Ana Margarida Bento
CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal
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Academic Career Length
12Years (2015-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications17 April 2024 in Ocean Engineering
Journal Article
João Chambel
Tiago João Marques Fazeres-Ferradosa
Filipe MirandaAna Margarida Bento
Francisco Taveira Pinto
Pedro Lomonaco1 November 2020 in Engineering Structures
Journal Article
Ana Margarida BentoAGAndreia Gomes
Andreia Gomes
TVTeresa Viseu
Teresa Viseu
LCLúcia Couto
Lúcia CoutoJPJoão Pedro Pêgo
João Pedro Pêgo
1 June 2017 in Journal of Hydraulic Engineering
Journal Article
Ana Margarida BentoSASílvia Rute Caleiro Amaral
Sílvia Rute Caleiro AmaralTVTeresa Viseu
Teresa Viseu
Rafaela Cardoso
Rui M.L. FerreiraThe quantification of the breach hydrograph of an overtopped earth dam remains a challenge, even in controlled laboratory conditions. In this work, the breach hydrograph is calculated as the product of the velocity normal to a breach cross section and the estimated area of that cross section. Although theoretically simple, because it is based on the very definition of discharge, this direct approach is an absolute novelty in dam-breach studies. To illustrate the application of the method, a laboratory model of an earth dam, built with cohesive sediments, was closely monitored. Competent velocities were estimated from surface velocity maps measured with large-scale particle image velocimetry (LSPIV). The breach area was estimated by analyzing images of the traces of a laser sheet on the free surface and the breach bottom. The direct breach hydrograph was compared with an estimate based on the mass balance in the reservoir and with the discharge obtained through a rating curve of a downstream spillway. The novel method was shown to reproduce the main expected features of the breach hydrograph. The potential to provide estimates free from experimental artifacts caused by improper description of inertial effects is underlined. The advantages and the difficulties inherent to the method are discussed.
8 February 2025 in Ocean Engineering
Journal Article
Mohammad NajafzadehAna Margarida BentoSBSajad Basirian
Sajad Basirian
Tiago João Marques Fazeres-Ferradosa7 October 2015 in Journal of Applied Water Engineering and Research
Journal Article
PRPedro Xavier Ramos
Pedro Xavier RamosAna Margarida BentoRMRodrigo Maia
Rodrigo Maia
JPJoão Pedro Pedro Pêgo
João Pedro Pedro PêgoA study on the time development of local scour around a complex pier was developed using a small-scale model embedded in a sediment bed. A total of 15 laboratorial tests were performed at the Hydraulics Laboratory of the Faculty of Engineering of the University of Porto. The duration of each experiment was previously established to progressively characterize the scour cavity. After each experiment, the flume was gradually emptied to facilitate the application of close-range photogrammetry. The scour depth values resulting from the application of photogrammetry at the pile cap front agree well with the values obtained experimentally. The temporal development of the scour cavity is presented and discussed. Empirical formulas for the scour cavity time development and for the relation of scour depths to scour cavity volumes were obtained. The obtained three-dimensional models can also be used for calibration and validation of numerical models.
Journal Article
Ana Margarida BentoJPJoão Pedro Pedro Pêgo
João Pedro Pedro PêgoTVTeresa Viseu
Teresa ViseuLCLúcia Couto
Lúcia CoutoThe complex flow structure around bridge piers is challenging for both experimental and numerical studies. Therefore, investigating the capabilities of Computational Fluid Dynamics (CFD) tools in resolving the flow structure and the mechanism of sediment entrainment into and out of the scour hole remains a challenging task. In this study, the scour depth around an oblong bridge pier and the bed shear stress distributions in time and space were numerically investigated using the Computational Fluid Dynamics (CFD) tool Sediment Simulation In Intakes with Multiblock option (SSIIM). Clear water scour conditions and sand of known granulometric composition were considered in accordance with the experimental study carried out. Laboratory data and the results of a scour characterization around a 0.11 m wide oblong bridge pier were considered to calibrate and validate the numerical model. The averaged form of the Navier–Stokes equations was considered to simulate the turbulent flow fields in anticipation of long time scales. The results show that calibrated numerical models can reproduce measured scour depths in the laboratory environment with considerable accuracy, with an average relative error of less than 3%, especially around oblong bridge piers.
About Me
Dr. Ana Margarida Bento é investigadora pós-doutorada no CIIMAR e líder do projeto BriSK, financiado pelo Estímulo ao Emprego Científico da FCT. O seu trabalho combina modelação hidrológica, CFD e projeções climáticas para melhorar a resiliência de infraestruturas. Foi investigadora no projeto POSEIDON (CIIMAR/FEUP) e, entre 2022–2024, coordenou a unidade de I&D de Offshore Structures & Foundations, integrando o Comité Científico do CIIMAR.
Doutorada em Engenharia Civil pela FEUP no âmbito do programa InfraRisk/LNEC, desenvolveu um fator de prioridade para avaliação de risco de erosão em pontes. É Mestre em Engenharia Civil (Hidráulica e Recursos Hídricos) pelo IST, com dissertação no LNEC sobre rupturas de barragens por galgamento. Realizou um estágio IAESTE no Brasil na área de barragens de irrigação.
Lecionou no IPVC e IPG (2023/24 e 2024/25) e coorientou projetos de licenciatura e mestrado. Participou em projetos como NUMPIERS, InfraCrit e GIIP, colaborando com a IP, EDP e instituições internacionais (Politecnico di Torino, Trinity College Dublin, NTNU, GUAT).
É membro ativo de IAHR, PIANC, IABSE, APRH, RISCOS, EGU e da Ordem dos Engenheiros. Integra o Advisory Board da Water (MDPI), a AQUARIUS Expert Team, a IAHR Europe Leadership Team e o Painel de Peritos do IAHR Label/UNESCO-IHP. É Associate Editor de três revistas e Editora-Chefe do Newsflash Europe da IAHR.
Conta com 31 publicações, H-index Scopus: 10 e 241 citações (28 nov. 2025).