The influence of porous media microstructure on filtration
We investigate how a filter media microstructure influences filtration performance. We derive a theory that generalizes classical multiscale models for regular structures to account for filter media with more realistic microstructures, comprising random microstructures with polydisperse unidirection...
| Main Authors: | , , |
|---|---|
| Format: | Journal article |
| Published: |
2018
|
| _version_ | 1797052576832684032 |
|---|---|
| author | Printsypar, G Bruna, M Griffiths, I |
| author_facet | Printsypar, G Bruna, M Griffiths, I |
| author_sort | Printsypar, G |
| collection | OXFORD |
| description | We investigate how a filter media microstructure influences filtration performance. We derive a theory that generalizes classical multiscale models for regular structures to account for filter media with more realistic microstructures, comprising random microstructures with polydisperse unidirectional fibres. Our multiscale model accounts for the fluid flow and contaminant transport at the microscale (over which the media structure is fully resolved) and allows us to obtain macroscopic properties such as the effective permeability, diffusivity, and fibre surface area. As the fibres grow due to contaminant adsorption this leads to contact of neighbouring fibres. We propose an agglomeration algorithm that describes the resulting behaviour of the fibres upon contact, allowing us to explore the subsequent time evolution of the filter media in a simple and robust way. We perform a comprehensive investigation of the influence of the filter-media microstructure on filter performance in a spectrum of possible filtration scenarios. |
| first_indexed | 2024-03-06T18:33:29Z |
| format | Journal article |
| id | oxford-uuid:0a7451b6-5fa6-4c44-ab23-41c9cf1e431c |
| institution | University of Oxford |
| last_indexed | 2024-03-06T18:33:29Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | oxford-uuid:0a7451b6-5fa6-4c44-ab23-41c9cf1e431c2022-03-26T09:23:56ZThe influence of porous media microstructure on filtrationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0a7451b6-5fa6-4c44-ab23-41c9cf1e431cSymplectic Elements at Oxford2018Printsypar, GBruna, MGriffiths, IWe investigate how a filter media microstructure influences filtration performance. We derive a theory that generalizes classical multiscale models for regular structures to account for filter media with more realistic microstructures, comprising random microstructures with polydisperse unidirectional fibres. Our multiscale model accounts for the fluid flow and contaminant transport at the microscale (over which the media structure is fully resolved) and allows us to obtain macroscopic properties such as the effective permeability, diffusivity, and fibre surface area. As the fibres grow due to contaminant adsorption this leads to contact of neighbouring fibres. We propose an agglomeration algorithm that describes the resulting behaviour of the fibres upon contact, allowing us to explore the subsequent time evolution of the filter media in a simple and robust way. We perform a comprehensive investigation of the influence of the filter-media microstructure on filter performance in a spectrum of possible filtration scenarios. |
| spellingShingle | Printsypar, G Bruna, M Griffiths, I The influence of porous media microstructure on filtration |
| title | The influence of porous media microstructure on filtration |
| title_full | The influence of porous media microstructure on filtration |
| title_fullStr | The influence of porous media microstructure on filtration |
| title_full_unstemmed | The influence of porous media microstructure on filtration |
| title_short | The influence of porous media microstructure on filtration |
| title_sort | influence of porous media microstructure on filtration |
| work_keys_str_mv | AT printsyparg theinfluenceofporousmediamicrostructureonfiltration AT brunam theinfluenceofporousmediamicrostructureonfiltration AT griffithsi theinfluenceofporousmediamicrostructureonfiltration AT printsyparg influenceofporousmediamicrostructureonfiltration AT brunam influenceofporousmediamicrostructureonfiltration AT griffithsi influenceofporousmediamicrostructureonfiltration |