Web-forming system design using CFD modelling for complex 3D nonwoven shell structures

Xiao Yan Wang, Rong Hua Gong, Zhe Dong, Isaac Porat

    Research output: Contribution to journalArticlepeer-review

    Abstract

    CFD modelling has been used to study the unique problem of airflow containing fibres around 3D porous media in nonwoven web forming systems. The related gas-solid two-phase flows were simulated using a commercial CFD package, FLUENT. Simulation results revealed that the uniformity of air velocities and fibre concentration around the moulds, particularly for complex-shaped moulds, could be improved significantly by means of employing vertically oriented web forming system and moulds with controlled porosity. Experimental results indicated that the distribution of the area densities of the 3D nonwovens produced using polypropylene/polyester bi-component fibre followed the same patterns of the airflow and fibre distributions simulated using the CFD model. The CFD model is a valuable tool for optimising the web forming systems and improving the uniformity of the 3D nonwovens. © 2006 WILEY-VCH Verlag GmbH & Co. KGaA.
    Original languageEnglish
    Pages (from-to)210-217
    Number of pages7
    JournalMacromolecular Materials and Engineering
    Volume291
    Issue number3
    DOIs
    Publication statusPublished - 2006

    Keywords

    • 3D nonwovens
    • Computer modeling
    • Fibers
    • Optimization
    • Processing

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