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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

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 is applied to geometric optimization of an insulated wall bioreactor. The optimization of the bioreactor geometry allows that it to operate, below a certain temperature limit, without external cooling ...

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 ...

The purpose here is to investigate, by means of the constructal principle, the influence of the convective heat transfer flux at the cavity surfaces over the optimal geometry of a T-shaped cavity that intrudes into a solid ...

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. ...

Este trabalho trata do projeto, montagem e testes iniciais de um penetrômetro de queda livre, desenvolvido na Universidade Federal do Rio Grande (FURG). O projeto baseia-se no formato do aerofólio Joukowski simétrico, ...

Este trabalho tem por objetivo o desenvolvimento, construção e testes preliminares de um penetrômetro de queda livre para a caracterização de solos marinhos. O aparelho tem por finalidade medir as características de ...

O presente trabalho tem como referência investigações oriundas do projeto A Ilha dos Marinheiros do Rio Grande e suas Edificações de Lata, desenvolvido junto à Escola de Engenharia e ao Núcleo de Estudos sobre Populações ...

The cracking phenomenon in concrete gravity dams during the construction phase is analysed in this work. Stresses due to the self-weight of the dam, thermal gradients, creep and drying shrinkage are computed, taking into ...

O objetivo deste artigo é analisar a credibilidade do regime de metas de inflação no Brasil e propor um novo método de mensurá-la. Para tanto revisamos alguns índices de credibilidade anteriormente propostos para o país. ...