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Flow-induced deformation of non-crimp fabrics during composites manufacturing
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.
2009 (English)In: Proceedings of ITP2009: Interdisciplinary Transport Phenomena VI: Fluid, Thermal, Biological, Materials and Space Sciences, October 4-9, 2009, Volterra, Italy, 2009, Paper No: ITP-09 p.Conference paper (Refereed)
Abstract [en]

Flow induced alteration in permeability of deformable systems of fibres is studied. Low Reynolds number transversal flow through random arrays of aligned cylinders is considered by using a combined methodology of directly solving the twodimensional Navier-Stokes equations for the flow in the vicinity of a single fibre and minimisation of the dissipation rate in a system of fibres. The permeability of large random arrays increases always which is most apparent for compact systems with equal sized fibres. The permeability can also decrease but then for structured or small systems. The elastic deformations of fibre bundles are calculated basing microscopic fibre structure.

Place, publisher, year, edition, pages
2009. Paper No: ITP-09 p.
Research subject
Fluid Mechanics
URN: urn:nbn:se:ltu:diva-27833Local ID: 163a8800-cc9d-11de-b769-000ea68e967bOAI: diva2:1001024
Interdisciplinary Transport Phenomena Conference : 04/10/2009 - 09/10/2009
Godkänd; 2009; 20091108 (stlu)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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Frishfelds, VilnisHellström, J. Gunnar I.Lundström, Staffan
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