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Abstract

In this paper we report on the water permeability behavior of nonwoven fabrics produced from flax fibers. Three different types of needle punched nonwoven fabrics are produced by varying the depths of needle penetration during the needle punching process. The pore size and its distribution in the nonwoven fabrics are measured by liquid extrusion porometry. Water permeability is measured by the water permeability testing instrument working on the principle of falling hydraulic head method. A finite element analysis is employed to predict the flow velocity through the nonwoven fabrics. A good correlation is achieved between the average velocity data obtained from water permeability test and theoretical prediction based on finite element analysis. The pore size and its distribution play an important role in water permeability characteristics.

Keywords

Darcy's law finite element analysis nonwoven fabrics pore size water permeability

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References

Mao, N. , and Russell, S.J. , Directional Permeability of Homogeneous Anisotropic Fibrous Material, Part 1, J. Text. Inst., 91(2), 235-243 (2000).

Mao, N. , and Russell, S.J. , Directional Permeability of Homogeneous Anisotropic Fibrous Material, Part 2, J. Text. Inst., 91(2), 244-258 (2000).

Mao, N. , and Russell, S.J. , Modeling Permeability in Homogeneous Three-Dimensional Nonwoven Fabrics, Text . Res. J., 73(11), 939-944 (2003).

Sullivan, R.R. , and Hertel, K.L. , Flow of Air Through Porous Media , J. App. Phys., 11, 761-765 (1940).

Carman, P.C. , "Flow of Gases through Porous Media", Academic Press , New York, 1956.

Cox, R.G. , The Motion of Long Slender Bodies in a Viscous Fluid, Part 1, J. Fluid. Mech., 44, 791-810 (1970).

Happel, J. , Viscous Flow Relative to Array of Cylinders, J. Am. Inst. Chem. Eng., 5, 174-177 (1959).

Darcy, H. , "Les Fontaines Publiques de la Ville de Dijon", Victor Dalmont Publication, Paris, 1856.

Patnaik, A. , Rengasamy, R.S. , Kothari, V.K. , and Ghosh, A. , Wetting and Wicking in Fibrous Materials, Text. Prog. , 38(1), 1-110 (2006).

10.

Mao, N. , Russell, S.J. , and Pourdeyhimi, B. , Characterization, Testing, and Modeling of Nonwoven Fabrics, in " Handbook of Nonwovens", Russell, S. J. (ed.), Woodhead Publishing Limited, Cambridge , U.K., 2007.

11.

"Comsol Multiphysics 3.2", User Guide, 2005.

12.

"Capillary Flow Porometer", Instruction Manual , Porous Material Inc., 2004.

13.

Jena, A. , and Gupta, K. , Liquid Extrusion Techniques for Pore Structure Evaluation of Nonwovens , Int. Nonwoven J., 12, 45- 53 (2003).

14.

Patanaik, A. , Anandjiwala, R.D. , Gonsalves, J. , and Boguslavsky, L. , Modelling Pore Size Distributions in Needle Punched Nonwoven Structures Using Finite Element Analysis, in "Paper Presented in Finite Element Modeling of Textiles and Textile Composites Conference", St Petersburg, Russia, 26-28 September 2007 .

15.

Mayer, E. , Porometry Characterization of Filtration Media, Filtn. News , 20, 1-7 (2002).

16.

EN ISO 11058 , Geotextiles and Geotextiles-Related Products, Determination of Water Permeability Characteristics Normal to the Plane without Load, 1999.

17.

Gresho, P.M. , and Sani, R.L. , "Incompressible Flow and the Finite Element Method", Vols 1 and 2, John Wiley & Sons, New York, 2000.

18.

Pironneau, O. , "Finite Element Methods for Fluids", John Wiley & Sons, New York, 1989.

Some Studies on Water Permeability of Nonwoven Fabrics

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