Flow Through Porous Media
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. Transverse permeability determination and influence in resin flow through an orthotropic medium in the RTM process
ABSTRACT Resin Transfer Molding (RTM) process is commonly used to produce high quality polymeric composites with simple or complex geometries in small to large sizes. In RTM process a preformed reinforcement is positioned inside the mold cavity. This dry reinforcement is actually a fibrous porous media whereby resin will flow. The mold is then closed and res
Matéria (Rio J.). Publicado em: 20/07/2017
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2. EFFECT OF NON-DARCY FLOW COEFFICIENT VARIATION DUE TO WATER VAPORIZATION ON WELL PRODUCTIVITY OF GAS CONDENSATE RESERVOIRS
Abstract Well productivity of gas condensate reservoirs is highly affected by near-wellbore phenomena. Inertial force resulting from convective acceleration of fluid particles in the medium, as well as viscous force, determines the flow of gas through porous media at high velocity. Pressure drop builds up the molar content of water in gas by water vaporizati
Braz. J. Chem. Eng.. Publicado em: 2015-03
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3. Three-dimensional numerical modeling of RTM and LRTM processes
Resin Transfer Molding (RTM) is a manufacturing process in which a liquid resin is injected into a closed mold pre-loaded with a porous fibrous preform, producing complex composite parts with good surface finishing. Resin flow is a critical step in the process. In this work, the numerical study of the resin flow in RTM applications was performed employing a
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-06
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4. NUMERICAL ANALYSIS OF THE FLOW OF EMULSION THROUGH STRAIGHT AND CONSTRICTED CAPILLARIES / ANÁLISE NUMÉRICA DO ESCOAMENTO DE EMULSÕES ATRAVÉS DE CAPILARES RETOS E CAPILARES COM GARGANTA
Emulsion can be used as a mobility control agent in enhanced oil recovery methods in order to achieve a more efficient sweep of the reservoir. The application of such technique requires full understanding of how emulsions flow in a porous material. The macroscopic flow behavior can be determined based on the pore scale flow, at which emulsions cannot be trea
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/09/2011
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5. Desenvolvimento de método para medida de permeabilidade superficial de revestimentos de argamassa. / Development of method for measuring the surface permeability of coating mortar.
The phenomenon of permeability refers to the ability with which a fluid is transported through a porous medium, driven by pressure gradient between the material and the external environment. Degradation agents are conducted to the interior of mortar and concrete driven through such a phenomenon. Therefore, it is the permeability as a key parameters for durab
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/05/2011
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6. Escoamento de fluidos complexos e transporte de partÃculas em geometrias irregulares. / Complex fluid flows and particle transport in irregular geometries.
In this work many types of incompressible laminar Newtonian and Non-Newtonian flows are studied. The interplay of these flows with complex geometries was investigated using computational modeling and numerical solution of the conservation of momentum and mass continuity equations. As a first step, the computational modeling of a network of pores was adopted
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2011
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7. ANALYSIS OF EMULSION FLOW THROUGH POROUS MEDIA USING CAPILLARY NETWORK MODEL / ANÁLISE DO ESCOAMENTO DE EMULSÕES EM MEIOS POROSOS UTILIZANDO MODELO DE REDE DE CAPILARES
Emulsões podem ser utilizadas como agentes de controle de mobilidade em diferentes processos de recuperação melhorada de petróleo e armazenamento de carbono em reservatórios porosos. A aplicação desta técnica, com a escolha correta das características das emulsões injetadas e a determinação das condições de operação ótimas, requer um entendi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/04/2011
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8. LIQUID-LIQUID DISPLACEMENT FLOWS IN A HELE-SHAW CELL INCLUDING NON-NEWTONIAN EFFECTS / DESLOCAMENTO DE LÍQUIDOS EM CÉLULA DE HELE-SHAW CONSIDERANDO EFEITOS NÃO NEWTONIANOS
This work studied the displacement of fluids in porous media using a Hele-Shaw cell. Specifically, was investigated experimentally the displacement of a non-Newtonian fluid by a Newtonian in a rectangular Hele-Shaw cell. The Saffman-Taylor or viscous fingering instability occurs when one fluid pushes a more viscous one, and a Hele-Shaw is a convenient tool t
Publicado em: 2010
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9. SNAP OFF OF EMULSION DROPS IN THE FLOW THROUGH A CONSTRICTED CAPILLARY / ANÁLISE DO PROCESSO DE QUEBRA DE GOTA DE EMULSÕES NO ESCOAMENTO ATRAVÉS DE UM CAPILAR COM GARGANTA
The snap off of emulsion drops appears in several industrial activities, including the oil industry. The analysis snap off in a constricted capillary is related to the study of emulsion formation and its characteristics in a porous media. This thesis presents a numerical model based on the conservation equations and lubrification theory developed for Newtoni
Publicado em: 2010
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10. FLOW OF EMULSIONS IN POROUS MEDIA: EXPERIMENTS AND CAPILLARY NETWORK MODEL / ESCOAMENTO DE EMULSÕES EM MEIOS POROSOS: EXPERIMENTOS E MODELO DE REDE DE CAPILARES
Objective: Transport of emulsions in porous media is relevant to several subsurface applications. Many enhanced oil recovery processes involve emulsion formation and their flow in some form. Modeling the flow of emulsion in porous media is extremely challenging. The available descriptions based on effective viscosity are not valid when the drop size is of th
Publicado em: 2009
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11. Estudo de metodo para avaliação de incerteza na simulação de fluxo em meios porosos / Study of method for uncertainty assessment in flow through porous media
A área de estudos tem aproximadamente 10300 m2 e substrato caracterizado por aterro argilo-arenoso com presença de entulhos sobreposto a sedimentos não litificados, ora mais argilosos, ora predominantemente arenosos. Foi identificado aquífero livre com fluxo de sul para norte, governado por gradiente hidráulico de 1%. O trabalho realizado busca aplicar
Publicado em: 2009
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12. OIL WATER EMULSIONS FLOW THROUGH MICRO-CAPILLARIES / ESCOAMENTO DE EMULSÕES ÓLEO EM ÁGUA ATRAVÉS DE MICRO-CAPILARES
Experimental evidences show the potential of emulsion injection in the improvement of oil recovery factor. The responsible mechanism for this better reservoir sweep is the water mobility reduction in regions already swept by water. This reduction can be associated with partial blockage of porous media throats by droplets of emulsion dispersed phase. The effi
Publicado em: 2008