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Isoldi, Liércio André; Grimmler, Juliana do Amaral Martins; Letzow, Max; Souza, Jeferson Avila; Gomes, Mateus das Neves; Rocha, Luis Alberto Oliveira; Santos, Elizaldo Domingues dos
(2015)
The oceans represent one of the major energy natural resources, which potentially can be used to supply the World energy demand. In the last decades some devices to convert the wave ocean energy into electrical energy have ...
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Helbig, Daniel; Real, Mauro de Vasconcellos; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André
(2013)
A crescente necessidade de estruturas com propriedades mecânicas superiores impulsiona o desenvolvimento de novos tipos de materiais, dentre os quais se destacam os materiais compósitos laminados reforçados por fibras. ...
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Gomes, Mateus das Neves; Olinto, Cláudio Rodrigues; Rocha, Luiz Alberto Oliveira; Souza, Jeferson Avila; Isoldi, Liércio André
(2009)
This paper presents two different numerical methodologies to generate regular gravity waves in a wave tank. We performed numerical simulations of wave generation through the FLUENT® package, using the Volume of Fluid (VOF) ...
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Porto, Joseane da Silva; Letzow, Max; Santos, Elizaldo Domingues dos; Amico, Sandro Campos; Souza, Jeferson Avila; Isoldi, Liércio André
(2012)
Light Resin Transfer Molding (LRTM) is a variation of the conventional manufacturing process known as Resin Transfer Molding (RTM). In general terms, these manufacturing processes consist of a closed mould with a preplaced ...
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Real, Mauro de Vasconcellos; Isoldi, Liércio André; Damas, Alexandra Pinto; Helbig, Daniel
(2013)
Many steel structures such as ships and offshore structures are composed by welded stiffened or unstiffened plate elements. Cutouts are often provided in these plate elements for inspection, maintenance, and service purposes, ...
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Vaz, Joaquim; Sattler, Miguel Aloysio; Santos, Elizaldo Domingues dos; Isoldi, Liércio André
(2011)
The need to develop new technologies that allow the use of sustainable alternative sources of energy is increasingly evident. Thus, this work presents an experimental and numerical study of earth–air heat exchangers, which ...
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Cunha, Daniele Colembergue da; Souza, Jeferson Avila; Rocha, Luiz Alberto Oliveira; Costa, Jorge Alberto Vieira
(2009)
The design of a modular bioreactor for solid
state fermentation is a promising development because it keeps the homogeneity of the bed at optimal levels. This study determines the optimum geometry of elementary
modules ...
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Silva, Jair Vignolle da; Teixeira, Paulo Roberto de Freitas; Calliari, Lauro Júlio
(2014)
The shoreface and the inner shelf along the northern and the central coast of Rio Grande do Sul (RS) state, Brazil, between Torres and Mostardas, although displaying a homogeneous bottom relief show variations in slope and ...
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Rodrigues, Michel Kepes; Brum, Ruth da Silva; Vaz, Joaquim; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André
(2015)
The Earth-Air Heat Exchanger (EAHE) is a device used to improve the thermal condition of built environments, allowing the reduction of electrical energy consumption of traditional air conditioner systems. Fundamentally, ...
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Teixeira, Paulo Roberto de Freitas; Davyt, Djavan Perez; Didier, Eric Lionel; Ramalhais, Rúben dos Santos
(2013)
The study of ways of converting ocean wave energy into a useful one and the improvement of the existing equipment are complex engineering problems and very important issues in today’s society. In this paper, the onshore ...
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Seibt, Flávio Medeiros; Couto, Eduardo Costa; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira; Teixeira, Paulo Roberto de Freitas
(2014)
The growing search for clean and renewable energy sources has given rise to the studies of exploring sea wave energy. This paper is concerned with the numerical evaluation of the main operational principle of a submerged ...
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Davyt, Djavan Perez; Teixeira, Paulo Roberto de Freitas; Ramalhais, Rúben dos Santos; Didier, Eric Lionel
(2011)
Neste trabalho é analisado um dispositivo de extração de energia das ondas do tipo coluna de água oscilante sob a ação de ondas regulares de diferentes períodos. São realizadas variações no comprimento submerso da parede ...
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Teixeira, Paulo Roberto de Freitas; Araújo, Douglas Bezerra de; Cunda, Luiz Antonio Bragança da
(2014)
Welding processes are considered a thermal-mechanical-metallurgical coupled issue. The most important boundary condition in the numerical thermal analysis is the heat source model. Although many studies have been carried ...
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Zhao, Hairong; Souza, Jeferson Avila; Ordonez, Juan Carlos
(2008)
This paper presents a 3D model for the determination of the temperature field in an electromagnetic launcher. The large amounts of energy that are dissipated into the structure of an electromagnetic launcher during short ...
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Souza, Jeferson Avila; Nava, Marcelo José Anghinoni; Rocha, Luiz Alberto Oliveira; Amico, Sandro Campos
(2008)
Resin Transfer Molding (RTM) is a polymer composite processing technique widely used in the aeronautics and automotive sectors. This paper describes the numerical simulation of the RTM process where Darcy’s law was used ...
