Air Permeability Prediction of Herringbone Weave Using Computational Fluid Dynamics and Finite Element Method
摘要
The herringbone twill weave pattern, known for its distinctive V-shaped structure, posing challenges for predicting the capture of airflow behavior due to complex interlacing of yarns. In this study, a geometrical model of the fabric is developed based on actual geometric parameters observed from scanning electron microscopy (SEM) images. TexGen software is used for generation of fabric geometry, by considering precise measurements of yarn diameter and spacing. Then numerical simulation approaches, such as computational fluid dynamics (CFD) and finite element method (FEM) are used to simulate airflow through the fabric structure using both creep flow and Darcy’s law into the model. Experimental validation is assessed using a TEXTEST FX 3300 air permeability tester according to the BS 5636 standard. The comparison between experimental and predicted results demonstrates a high correlation coefficient and a low mean absolute error, indicating good agreement between the two. Therefore, computational techniques offer significant potential for enhancing the design and optimization of such fabrics for various applications.