Prediction of air permeability coefficient and water-vapor resistance of 3D textile layer

This study presents a computational model for investigation of the air permeability coefficient and water-vapor resistance through 3D textile layer. The effective values coefficients are highly dependent on volumetric internal structure water vapor flow has been performed microscale finite element representative volume layer by taking into account real configuration yarns filaments. were obtained using average fluxes thickness volume. steady state models in micro scale based Navier-Stokes Brinkman partial differential equations. simulations Comsol Multiphysics 5.3a software environment laminar (.spf) application mode. Numerical results samples obtained, analyzed validated comparing against experimental data. Good agreement with data achieved.HighlightsCOMSOL was used to simulate layer.The numerical demonstrated its efficiency measurements.