Browsing EE - Escola de Engenharia by Subject "Constructal design"

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  • Constructal design applied to the elastic buckling of thin plates with holes 

    Rocha, Luiz Alberto Oliveira; Isoldi, Liércio André; Real, Mauro de Vasconcellos; Santos, Elizaldo Domingues dos; Correia, Anderson Luis Garcia; Lorenzini, Giulio; Biserni, Cesare (2013)
    Elastic buckling is an instability phenomenon that can occur if a slender and thin plate is subjected to axial compression. An important characteristic of the buckling is that the instability may occur at a stress level ...
  • Constructal design applied to the light resin transfer molding (LRTM) manufacturing process 

    Isoldi, Liércio André; Souza, Jeferson Avila; Santos, Elizaldo Domingues dos; Marchesini, Renato; Porto, Joseane da Silva; Letzow, Max; Rocha, Luiz Alberto de Oliveira; Amico, Sandro Campos (2013)
    The Light Resin Transfer Molding (LRTM) is a manufacturing process where a closed mold pre-loaded with a porous fibrous preform is filled by a liquid resin injected through an empty channel (without porous medium) which ...
  • Constructal design applied to the optimization of heat transfer in a solid conducting wall 

    Marques, Crístofer Hood; Santos, Elizaldo Domingues dos; Rocha, Luiz Alberto Oliveira (2007)
    The present paper applies Constructal Design to optimize the geometry of a Yshaped negative fin that intrudes a solid conducting wall with heat generation. The main goal is the minimization of the thermal global resistance ...
  • Constructal design de caminhos não-uniforme de alta condutividade térmica em forma de “y” para a refrigeração de corpos geradores de calor 

    Beckel, Cássia Cris; Horbach, Cristina Santos; Isoldi, Liércio André; Santos, Elizaldo Domingues dos; Rocha, Luiz Alberto Oliveira (2014)
    Este estudo numérico utiliza o método Constructal Design para reduzir os pontos quentes de um sólido com geração de calor uniforme por unidade de volume através da transferência de calor por condução. A ideia é facilitar ...
  • Constructal design of a tubular array subjected to forced convection. 

    Pedrotti, Vagner Andrade; Souza, Jeferson Avila; Santos, Elizaldo Domingues dos; Isoldi, Liércio André (2015)
    In this work a tubular array (four tubes) subjected to a transverse forced flow is analyzed in terms of thermal performance. Taking into account that there are two main assembles usually used in heat exchanger ...
  • Constructal design of a vortex tube for several inlet stagnation pressures 

    Marques, Crístofer Hood; Isoldi, Liércio André; Santos, Elizaldo Domingues dos; Rocha, Luiz Alberto Oliveira (2012)
    The present paper shows a numerical study concerned with the geometrical optimization of a vortex tube device by means of Constructal Design for several inlet stagnation pressures. In the present study, it is evaluated a ...
  • Constructal design of a x-shaped cavity cooled by convection 

    Link, Fernanda Bichet; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos; Isoldi, Liércio André (2014)
    This paper applies Constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conductive wall. The objective is minimizing the dimensionless maximal excess of temperature between the solid ...
  • Constructal design of convective cavities inserted into a cylindrical solid body for cooling 

    Lorenzini, Giulio; Estrada, Emanuel da Silva Diaz; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira (2015)
    This work applies Constructal design to study numerically the geometry of cavities bathed by a fluid with constant heat transfer coefficient that are intruded into a cylindrical solid body. The objective is to minimize the ...
  • Constructal design of isothermal x-shaped cavities 

    Lorenzini, Giulio; Biserni, Cesare; Link, Fernanda Bichet; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira (2014)
    This paper applies constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conducting wall. The objective is to minimize the maximal dimensionless excess of temperature between the solid ...
  • Constructal design of non-uniform x-shaped cavity 

    Link, Fernanda Bichet; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto de Oliveira (2013)
    This paper applies constructal design to study a non-uniform X-shaped cavity that penetrates a conductive solid wall. The goal is to minimize the maximal dimensionless excess of temperature between the solid body and cavity. ...
  • Constructal design of perforated steel plates subject to linear elastic and nonlinear elastoplastic buckling 

    Helbig, Daniel; Real, Mauro de Vasconcellos; Correia, Anderson Luis Garcia; Santos, Elizaldo Domingues dos; Isoldi, Liércio André (2013)
    Steel plates are used in a great variety of engineering applications, such as deck and bottom of ship structures, and platforms of offshore structures. Cutouts are often provided in plate elements for inspection, ...
  • Constructal design of T-shaped assemblies of fins cooling a cylindrical solid body 

    Lorenzini, Giulio; Biserni, Cesare; Corrêa, Roberta de Lima; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira (2014)
    This paper considers the numerical optimization of a T-shaped assembly of fins cooling a cylindrical solid body. The objective is to minimize the maximum excess of temperature between the solid cylindrical body and the ...
  • Constructal design of two T-Shaped assemblies of fins cooling a cylindrical solid body 

    Corrêa, Roberta de Lima; Rocha, Luiz Alberto Oliveira; Isoldi, Liércio André; Santos, Elizaldo Domingues dos (2012)
    Este artigo considera o design constructal de um corpo cilíndrico sólido arrefecido por duas aletas na forma T. O objetivo é minimizar o máximo excesso de temperatura entre o corpo cilíndrico e sólido a temperatura ambiente. ...
  • Geometric optimization based on the constructal design of perforated thin plates subject to buckling 

    Rocha, Luiz Alberto Oliveira; Real, Mauro de Vasconcellos; Correia, Anderson Luis Garcia; Vaz, Joaquim; Santos, Elizaldo Domingues dos; Isoldi, Liércio André (2012)
    Elastic buckling is an instability phenomenon that can occur if a slender and thin-walled plate is subjected to axial compressive load. It is well known that the presence of holes in structural plate elements is almost ...
  • Geometric optimization of bodies submitted to an intense heat flux using bifurcated channel nets 

    Bolzan, Claus de Rosso; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira (2009)
    The present work studies the geometric optimization of a body submitted to intense heat flux. The body to be optimized is refrigerated by a ducts system whose circulating fluid will remove the heat. The optimization method ...
  • Numerical investigation about the improvement of the thermal potential of an Earth-Air Heat exchanger (EAHE) employing the Constructal Design method 

    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, ...
  • Numerical study of resin distribution in two different arrangements of vascular channels by means of constructal design 

    Machado, Roselaine Neves; Isoldi, Liércio André; Santos, Elizaldo Domingues dos; Rocha, Luiz Alberto de Oliveira (2013)
    In the present work two different arrangements of vascular channels are studied numerically and their geometry is optimized by means of Constructal Design. The main purpose is to seek for the best geometry which minimizes ...
  • Otimização geométrica de placas com enrijecedores submetidas à flexão 

    Silveira, Thiago da; Correia, Anderson Luis Garcia; Silva, Caio César de Castro da; Rocha, Luiz Alberto de Oliveira; Real, Mauro de Vasconcellos; Santos, Elizaldo Domingues dos; Isoldi, Liércio André (2012)
    As placas enrijecidas são muito utilizadas em estruturas navais. Quando estas estruturas estão sob forte ação de cargas de flexão, é necessário que os reforços contribuam para a redução da deflexão da placa. O Método de ...
  • Otimização geométrica de um arranjo triangular de cilindros submetido a escoamento laminar com convecção forçada 

    Galarça, Marcelo Moraes; Cardoso, Felipe Rodrigues; Razera, Andre Luis; Acunha Junior, Ivoni Carlos; Isoldi, Liércio André; Porte, Anderson Favero; Rocha, Luiz Alberto Oliveira; Santos, Elizaldo Domingues dos (2015)
    O presente trabalho numérico estuda o arranjo triangular de cilindros submetidos a escoamentos transientes, bi-dimensionais, incompressíveis, laminares e com convecção forçada por meios do método Constructal Design. As ...
  • Two-dimensional geometric optimization of an oscillating water column converter in laboratory scale 

    Gomes, Mateus das Neves; Nascimento, Cristina Dias do; Bonafini, Beatriz Leandro; Santos, Elizaldo Domingues dos; Isoldi, Liércio André; Rocha, Luiz Alberto Oliveira (2012)
    The present paper presents a two-dimensional numerical study about the geometric optimization of an ocean Wave Energy Converter (WEC) into electrical energy that has as operational principal the Oscillating Water Column ...