-
-
Brum, Ruth da Silva; Vaz, Joaquim; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André
(2013)
The use of renewable energy sources to improve the thermal conditions of built environments and hencedecreasing the consumption of conventional energy is an important aspect to design a sustainable build-ing. Within this ...
-
-
Vargas, Jose Viriato Coelho; Souza, Jeferson Avila; Hovsapian, Rob; Ordonez, Juan Carlos; Chiocchio, Tim; Chalfant, Julie; Chryssostomidis, Chryssostomos; Dilay, Emerson
(2012)
This work presents a simplified mathematical model for fast visualization and thermal simulation of complex and integrated energy systems that is capable of providing quick responses during system design. The tool allows ...
-
-
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 ...
-
-
Gomes, Mateus das Neves; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira
(2015)
The wave energy conversion into electricity has
been increasingly studied in the last years. There are several
proposed converters. Among them, the oscillatingwater
column (OWC) device has been widespread evaluated
in ...
-
-
Gomes, Mateus das Neves; Seibt, Flávio Medeiros; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André
(2014)
This work presents a 2D numerical study of an Oscillating Water Column (OWC) converter considering physical constraints in its outlet chimney to represent the turbine pressure drop. Two strategies were adopted. The first ...
-
-
Paliga, Charlei Marcelo; Real, Mauro de Vasconcellos; Campos Filho, Américo
(2013)
The use of composite materials based on polymeric resins and fiber as strengthening in concrete structures has been widely used. The use of carbon fiber reinforced polymers or other synthetic fibers is consolidated by its ...
-
-
Seibt, Flávio Medeiros; Couto, Eduardo Costa; Teixeira, Paulo Roberto de Freitas; Santos, Elizaldo Domingues dos; Rocha, Luiz Alberto Oliveira; Isoldi, Liércio André
(2014)
The need for clean and renewable energy sources has nowadays contributed to give relevance to the study of sea wave energy. In this context, the present work brings a computational modeling to analyze the fluid-dynamic ...
-
-
Oliveira, Iran Rodrigues de; Amico, Sandro Campos; Souza, Jeferson Avila; Lima, Antonio Gilson Barbosa de
(2015)
This work aims to investigate the infiltration of a CaCO3 filled resin in fibrous porous
media (resin transfer molding process) using the PAM-RTM software. A preform of glass fiber mat (fraction 30%), with dimensions 320 ...
-
-
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, ...
-
-
Souza, Jeferson Avila; Rocha, Luiz Alberto Oliveira; Amico, Sandro Campos; Vargas, Jose Viriato Coelho
(2011)
Resin Transfer Molding (RTM) is largely used for the manufacturing of high-quality composite components and the key stage during processing is the resin infiltration. The complete understanding of this phenomenon is of ...
-
-
Santos, Elizaldo Domingues dos; Silva, Fábio de Moraes Vaz da; Acunha Junior, Ivoni Carlos; Galarça, Marcelo Moraes; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira
(2012)
The present study presents large eddy simulation (LES) of forced convective heat transfer in transient, two-dimensional, incompressible turbulent flows over a pair of cylinders with two different arrangements: 1) with two ...
-
-
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 ...
-
-
Souza, Jeferson Avila; Vargas, Jose Viriato Coelho; Meien, Oscar Felippe von; Martignoni, Waldir Pedro
(2003)
The catalytic cracking of hydrocarbons in a FCC riser is a very complex physical and chemical phenomenon, which combines a three-dimensional, three-phase fluid flow with a heterogeneous catalytic cracking kinetics. Several ...
-
-
Teixeira, Paulo Roberto de Freitas; Awruch, Armando Miguel
(2005)
An algorithm to simulate 3D fluid–structure interaction problems using the finite element technique is presented in this work. A two-step Taylor–Galerkin scheme and linear tetrahedra elements are employed to analyze the ...
-
-
Teixeira, Paulo Roberto de Freitas
(2009)
A numerical simulation of the interaction between a regular wave and an immersed horizontal cylinder, whose axis is 3-radius deep, perpendicular to the direction of the wave propagation, is presented in this paper. The ...
-
-
Gonçalves, Rafael Almeida; Teixeira, Paulo Roberto de Freitas; Didier, Eric Lionel
(2012)
The vortex-induced vibration (VIV) phenomenon has drawn the attention of researchers in Engineering for several decades. An example is the riser used for petroleum exploration, in which it is subjected to marine flows that ...
-
-
Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Petry, Adriane Prisco; França, Francis Henrique Ramos
(2014)
This work presents a numerical study of turbulent channel flows with combined convective and radiative heat transfer in participating media by means of large Eddy simulation and Reynolds averaged Navier–Stokes (RANS) with ...
-
-
Santos, Elizaldo Domingues dos; Petry, Adriane Prisco; Rocha, Luiz Alberto Oliveira; França, Francis Henrique Ramos
(2013)
This study presents the LES (large eddy simulation) of forced convection in laminar and two dimensional turbulent flows
when the flow reaches the steady state. The main purpose is the evaluation of a developed numerical ...
-
-
Farias, Rodrigo Martins; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira
(2008)
The present work studies numerically and experimentally the water cooling process by means of natural convection inside a closed reservoir. The cooling process is performed by Peltier or Thermoelectric effect. The purpose ...
-
-
Vieira, Rodrigo Spotorno; Garcia, Claudio; Acunha Junior, Ivoni Carlos; Souza, Jeferson Avila; Rocha, Luis Alberto Oliveira; Isoldi, Liércio André; Santos, Elizaldo Domingues dos
(2015)
In the presented work, it is made a numerical study about the main physical principle of a solar chimney (SCPP – Solar Chimney Power Plant) and the influence of some geometric parameters on the available power in the SCPP. ...