Computational Solid Dynamics
Mostrando 13-24 de 31 artigos, teses e dissertações.
-
13. Analise experimental e numerica de um jato de dispersão gas-solido / Experimental and numerical analysis of a dispersion gas-solid jet
Apresenta-se nesta pesquisa uma análise experimental e numérica do comportamento da fase dispersa em um jato circular bifásico confinado e uma comparação com jato circular bifásico livre. Nas análises experimentais, uma câmara pentagonal em acrílico foi utilizada como sistema de confinamento para a obtenção de perfis axiais e radiais de velocidade
Publicado em: 2009
-
14. Experimental and numerical study of spouted bed fluif dynamics
Spouted beds, originally invented in Canada by Mathur and Gishler (1955) as an alternative to fluidized beds for handling coarse particles, are now widely studied in a variety of physical operations, such as drying, coating and granulation. In this work the particle velocity, minimum spouting flow rate and characteristic fluid-dynamic curves of the spouted b
Brazilian Journal of Chemical Engineering. Publicado em: 2008-03
-
15. Evaluation of cyclone geometry and its influence on performance parameters by computational fluid dynamics (CFD)
Cyclone models have been used without relevant modifications for more than a century. Most of the attention has been focused on finding new methods to improve performance parameters. Recently, some studies were conducted to improve equipment performance by evaluating geometric effects on projects. In this work, the effect of cyclone geometry was studied thro
Brazilian Journal of Chemical Engineering. Publicado em: 2007-03
-
16. Modelagem multifasica Euleriana-Euleriana para simulação numerica de ciclones / Eulerian-Eulerian approach for numerical simulation of cyclones
In this work it is presented the computational code CYCLO, which is a program developed specifically to predict the dynamic behavior of the gas-solid flow in cyclones. The cyclones have been used extensively in many industries for a long time for separating the particles from gaseous streams. Since the beginning of the industrialization until the present tim
Publicado em: 2007
-
17. UMA ABORDAGEM LAGRANGEANA PARA SIMULAÇÃO DE ESCOAMENTOS DE FLUIDOS VISCOPLÁSTICOS E MULTIFÁSICOS / A LAGRANGIAN APPROACH FOR SIMULATING VISCOPLASTIC AND MULTIPHASE FLUIDS
In the last decade in Computer Graphics, they were development many techniques to simulate the behavior of objects such as rigid bodies, water, smoke, hair and cloth. While these techniques focus in simplifled physical models through monophase fluids or ideal solids, we propose new simulation techniques of viscoplastic and multiphase fluids based on a lagran
Publicado em: 2007
-
18. SimulaÃÃo de redes porosas metal-orgÃnicas usadas no armazenamento de gÃs natural
The natural gas is mainly stored in vessels by its compression at very high pressure. This pressure can be decreased by the natural gas storage in a vessel filled of a specific solid porous material due to the interaction between the material atoms and the gas (adsorption phenomena); which decreases the coasts and risks of the process. One example of materia
Publicado em: 2007
-
19. Estudo experimental e de simulação da fluidodinâmica de um leito de jorro com tubo Draft
The spouted bed has been used in several processes as drying, granulation, catalytic polymerization, residues treatment and materials coating. This application is due to the excellent fluid-particle contact and to the characteristics of the solids circulation. In spite of its extensive application, the spouted bed has some scale-up limitations, so its necess
Publicado em: 2007
-
20. Estudo experimental e de simulaÃÃo da fluidodinÃmica de um leito de jorro com tubo Draft
The spouted bed has been used in several processes as drying, granulation, catalytic polymerization, residues treatment and materials coating. This application is due to the excellent fluid-particle contact and to the characteristics of the solids circulation. In spite of its extensive application, the spouted bed has some scale-up limitations, so itâs nece
Publicado em: 2007
-
21. Otimização dos processos de separação em hidrociclones filtrantes
Filtering Hydrocyclones are devices used to solid-liquid separation and they have porous cones. Thus, during the operation these devices, besides the traditional streams (underflow and overflow), there is still an additional liquid stream from the filtration on conical area. The study and optimization of the filtering hydrocyclones were proposed in this work
Publicado em: 2006
-
22. A methodology and computational system for the simulation of fluid-structure interaction problem
In this paper a flexible finite element computational tool developed to investigate fluid-structure interaction applications in two dimensions is described. We consider problems which can be modelled as a viscous incompressible fluid flow and a rigid body-spring system interacting nonlinearly with each other. The coupling is dealt with the use of an interfac
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-09
-
23. Study of gas and gas-solid flow in ciclones using computational fluid dynamics technics / "Estudo dos escoamentos gasoso e gas-solido em ciclones pela aplicação de tecnicas de fluidodinamica computacional"
This work is the result of the efforts of the CFD research group of the Chemical Processes Modeling and Simulation Laboratory located at FEQ-UNICAMP to study gas and gas-particle flow in a cyclone. The starting point was to consolidate previous information in cyclone flow using current CFD techniques. Two research lines were applied: the first one has studie
Publicado em: 2005
-
24. Simulation of the gas-solid flow in a vertical cylindrical duct in fast-fluidized bed applying the CFD technique / Simulação do escoamento gas-solido em um duto cilindrico vertical em leito fluidizado rapido aplicando a tecnica CFD
A presente pesquisa apresenta a modelagem matemática e a simulação de uma operação de fluidização rápida em um longo duto cilíndrico vertical, operação importante em vários processos industriais, sendo que sua principal aplicação está vinculada ao craqueamento catalítico do petróleo para a conversão em gasolina. Tem como objetivos a obtenç
Publicado em: 2005