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Webe João Mansur
Researcher at Federal University of Rio de Janeiro
Publications - 218
Citations - 3241
Webe João Mansur is an academic researcher from Federal University of Rio de Janeiro. The author has contributed to research in topics: Boundary element method & Finite element method. The author has an hindex of 29, co-authored 206 publications receiving 2927 citations. Previous affiliations of Webe João Mansur include University of Southampton & Ferdowsi University of Mashhad.
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Journal ArticleDOI
Water levels in the Amazon basin derived from the ERS 2 and ENVISAT radar altimetry missions
Joecila Santos da Silva,Joecila Santos da Silva,Stéphane Calmant,Frédérique Seyler,Otto Corrêa Rotunno Filho,Gérard Cochonneau,Webe João Mansur +6 more
TL;DR: In this paper, the stages of water bodies in the Amazon basin derived from the processing of ERS-2 and ENVISAT satellite altimetry data were analyzed using water level time series over river segments of very different width, from several kilometers to less than a hundred of meters.
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Groundwater vulnerability and risk mapping using GIS, modeling and a fuzzy logic tool.
Rosane Cunha Maia Nobre,O. C. Rotunno Filho,Webe João Mansur,Manoel de Melo Maia Nobre,C.A.N. Cosenza +4 more
TL;DR: A groundwater vulnerability and risk mapping assessment, based on a source-pathway-receptor approach, is presented for an urban coastal aquifer in northeastern Brazil, to assess groundwater pollution risks and identify areas that must be prioritized in terms of groundwater monitoring and restriction on use.
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Formulation of the boundary element method for transient problems governed by the scalar wave equation
TL;DR: An integral formulation for solving two-and three-dimensional problems governed by the scalar wave equation is presented in this paper, where the authors focus on finding an integral expression for the two-dimensional case, involving source density, initial and boundary conditions, which can be used for time stepping numerical analysis.
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Solution of BEM systems of equations via iterative techniques
TL;DR: Non-symmetric versions of these algorithms are described and their performance is checked for BEM matrices, through various numerical experiments.
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Numerical implementation of the boundary element method for two dimensional transient scalar wave propagation problems
TL;DR: In this article, the boundary element method is used to solve two-dimensional transient problems governed by the scalar wave equation, and several examples are presented to illustrate how the time stepping technique was implemented and to show the accuracy of the solutions.