PREDICTION OF AIR PERMEABILITY OF KNITTED FABRIC BY USING COMPUTATIONAL METHOD

Year 2018, Volume: 28 Issue: 4, 273 - 279, 29.12.2018

Muhammad Owais Raza Sıddıquı , Muhammad Alı Muhammad Zubaır Danmei Sun

https://doi.org/10.32710/tekstilvekonfeksiyon.482877

Abstract

Air permeability is one of
the very important factors which need to be considered at the development stage
of textile fabrics because it affects the comfort of the clothing. During
normal and extreme environmental conditions human
body releases heat and the heat can be
controlled by the air exchange between the body and clothing microclimate and
the external environment; the exchange phenomena depends on the air
permeability of the fabric. The air permeability of fabric can be evaluated by both
the experimental and computational methods. In
this work, a computational method is used for the prediction of air
permeability of fabrics. The geometrical model of weft knitted structures was generated
by using the actual dimensional parameters of the fabric and was further analysed by applying appropriate boundary
conditions. The simulated results obtained from computational analysis were compared
to the experimental results. Furthermore, the validated models were further used to predict and analyse the effect of stitch length, stitch
density and fibre volume fraction on the air
permeability of the fabric.  

Keywords

Air Permeability, Computational Fluid Dynamics, Computational Methods

References

• 1. Ogulata, R.T., 2006, “Air permeability of woven fabrics”, Journal of Textile and Apparel, Technology and Management, Vol: 5(2): pp: 1-10.
• 2. Ogulata, R.T. and Mavruz, S., 2010, “Investigation of porosity and air permeability values of plain knitted fabrics”, Fibres & Textiles in Eastern Europe, Vol: 18(5): pp: 71-75.
• 3. Senoguz, M., et al., 2001, “Simulations and experiments on low-pressure permeation of fabrics: Part II—The variable gap model and prediction of permeability” Journal of composite materials, Vol:35(14), pp: 1285-1322.
• 4. Mavruz, S. and Ogulata, R.T., 2011, “Investigation of air permeability of single jersey fabrics with different relaxation states”, The Journal of The Textile Institute, Vol:102(1), pp: 57-64.
• 5. Kumar, V., Sampath, V.R. and Prakash, C., 2016, “Investigation of stretch on air permeability of knitted fabrics part II: effect of fabric structure”, The Journal of The Textile Institute, Vol: 107(10), pp: 1213-1222.
• 6. Rief, S., et al., 2011, “ Modeling and CFD-simulation of woven textiles to determine permeability and retention properties”, AUTEX Research Journal, Vol: 11(3), pp: 78-83.
• 7. Kyosov, M., Angelova, R.A. and Stankov, P., 2016, “Numerical modeling of the air permeability of two-layer woven structure ensembles”, Textile Research Journal, Vol: 86(19), pp: 2067-2079.
• 8. Mezarciöz, S., Mezarciöz, S. and Oğulata, R.T., 2014, “Prediction of air permeability of knitted fabrics by means of computational fluid dynamics”. Journal of Textile & Apparel/Tekstil ve Konfeksiyon, Vol: 24(2), pp: 202-211.
• 9. Dabiryan et al., 2018, “Simulating the structure and air permeability of needle-punched nonwoven layer”. The Journal of The Textile Institute, Vol: 109(8), pp: 1016-1026.
• 10. Dehkordi et al., 2017, “Numerical Modelling of the Air Permeability of Knitted Fabric Using Computational Fluid Dynamics (CFD) Method”. Fibers and Polymers, Vol: 18(9), pp: 1804-1809.
• 11. Siddiqui, M. and Sun, D., 2015, “Porosity Prediction of Plain Weft Knitted Fabrics”, Fibers, Vol: 3(1), pp: 1-11.
• 12. Siddiqui, M.O.R. and Sun, D., 2016, “Automated model generation of knitted fabric for thermal conductivity prediction using finite element analysis and its applications in composites”, Journal of Industrial Textiles, Vol:45(5), pp:1038-1061.
• 13. Siddiqui, M.O.R. and Sun, D., 2017, “Conjugate heat transfer analysis of knitted fabric”, Journal of Thermal Analysis and Calorimetry, Vol: 129(1), pp: 209-219.
• 14. Peirce, F.T., 1947, “Geometrical principles applicable to the design of functional fabrics”, Textile Research Journal, Vol: 17(3), pp: 123-147.
• 15. Hurd, J. and Doyle, P., 1953, “Fundamental aspects of the design of knitted fabrics”, Journal of the Textile Institute Proceedings, Vol: 44(8), pp:561-578.
• 16. Shinn, W., 1995, “An engineering approach to jersey fabric construction”, Textile Research Journal, Vol: 25(3), pp: 270-277.
• 17. Leaf, G. and Glaskin, A., 1995, “The geometry of a plain knitted loop”, Journal of the Textile Institute Transactions, Vol: 46(9), pp: 587-605.
• 18. Leaf, G., 1960, “Models of the plain-knitted loop”, Journal of the Textile Institute Transactions, Vol: 51(2), pp: 49-58.
• 19. Munden, D., 1959, “The geometry and dimensional properties of plain-knit fabrics”, Journal of the Textile Institute Transactions, Vol: 50(7), pp: 448-471.
• 20. Postle, R., 1968, “Dimensional stability of plain-knitted fabrics”, Journal of the Textile Institute, Vol: 59(2), pp: 65-77.
• 21. ASTM D737-96, 1996, “Standard Test Method for Air Permeability of Textile Fabrics”, ASTM International, West Conshohocken, PA.
• 22. Kurbak, A., 1998, “Plain knitted fabric dimensions (Part II)”, Textile Asia, Vol: 78, pp: 36-44.
• 23. Demiroz, A. and Dias, T. , 2000, “A study of the graphical representation of plain-knitted structures part I: Stitch model for the graphical representation of plain-knitted structures”, Journal of the Textile Institute, Vol: 91(4), pp: 463-480.
• 24. Gebart, B.R., 1992, “ Permeability of unidirectional reinforcements for RTM”, Journal of Composite Materials, Vol: 26(8), pp: 1100-1133.