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https://ri.ufs.br/jspui/handle/riufs/24171| Document Type: | Artigo |
| Title: | Separation process by porous membranes: a numerical investigation |
| Authors: | Cunha, Acto de Lima Souza, Josedite Saraiva de Farias Neto, Severino Rodrigues de Lima, Antonio Gilson Barbosa de Barbosa, Enivaldo Santos |
| Issue Date: | 2014 |
| Resumo : | A major problem associated with the membrane separation processes is the permeate flux drop, limiting the widespread of industrial application of this process. This occurs due to the accumulation of solute concentration near the membrane surface. An exact quantification of the concentration polarization as a function of process conditions is essential to estimate the system performance satisfactorily. In this sense, this work aims to predict the behavior of the concentration polarization boundary layer along the length of a permeable tubular membrane, over various operation conditions. The numerical solution of the Navier-Stokes equation, coupled to Darcy's and mass transfer equations, is obtained by the commercial software ANSYS CFX 12, considering a two-dimensional computational domain. The study evaluates the effects of axial Reynolds and Schmidt numbers on the concentration polarization boundary layer thickness during the cross-flow filtration process. Numerical results have shown that the mathematical model is able to predict the formation and growth of the concentration polarization boundary layer along the length of the tubular membrane. |
| Keywords: | Membrane separation process Porous membranes Navier-Stokes equation Polarization boundary layer |
| ISSN: | 1687-8140 |
| Is part of: | Advances in Mechanical Engineering |
| Language: | eng |
| Publisher / Institution : | Hindawi Publishing Corporation |
| Citation: | CUNHA, A. L. et al. Separation process by porous membranes: a numerical investigation. Advances in Mechanical Engineering, New York, v. 2014, 2014. Disponível em: https://journals.sagepub.com/doi/epub/10.1155/2014/469693. Acesso em: 9 jan. 2026. |
| License: | Creative Commons Atribuição 3.0 Não Adaptada (CC BY 3.0) |
| URI: | https://ri.ufs.br/jspui/handle/riufs/24171 |
| Appears in Collections: | DEPET - Artigos de periódicos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SeparationProcessPorousMembranes.pdf | 18,37 MB | Adobe PDF |  View/Open |
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