An idealised BC for the meso scale analysis of textile impregnation (CD-rom).

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The dual porosity of textile reinforcements, typically used in fibre reinforced plastics, poses a challenge in terms of permeability modelling. The influence of the dual porosity is found to be restricted to the interaction between the inter- and intra-bundle flow. It is proposed to account for this interaction by the application of a slip boundary condition on the bundle surface in a meso scale permeability model. The appropriate slip coefficient, for flow transverse to the bundle, is determined by solving the Stokes equations in a micro scale domain consisting of a single filament. A master curve is derived, relating the intra-bundle fibre volume fraction and slip coefficient. Application of the proposed slip coefficient on the bundle surface yields improved results compared to the use of a no-slip boundary condition. Future work focuses on the determination of a slip coefficient master curve for flow parallel to the bundles.
Original languageUndefined
Title of host publication9th International Conference on Flow Processes in Composite Materials
EditorsF. Trochu
Place of PublicationMontreal, Canada
PublisherRéseau Matériaux Québec
Number of pages8
Publication statusPublished - 8 Jul 2008
Event9th International Conference on Flow Processes in Composite Materials, FPCM-9 2008 - Montreal, Canada
Duration: 8 Jul 200810 Jul 2008
Conference number: 9


Conference9th International Conference on Flow Processes in Composite Materials, FPCM-9 2008
Abbreviated titleFPCM
Internet address


  • METIS-254047
  • slip boundary condition
  • transverse flow
  • dual scale porosity
  • Permeability
  • IR-75455

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