Permeability of three-dimensional random fiber webs

• المؤلفون الرئيسيون: Koponen, A., Kandhai, D., Hellén, E., Alava, M., Hoekstra, Alfons G., Kataja, M., Niskanen, K., Sloot, Peter M. A., Timonen, J.
• مؤلفون آخرون: School of Computer Engineering
• التنسيق: مقال
• اللغة: English
• منشور في: 2013
• الموضوعات: DRNTU::Engineering::Computer science and engineering
• الوصول للمادة أونلاين: https://hdl.handle.net/10356/84474; http://hdl.handle.net/10220/10194
• المؤسسة: Nanyang Technological University

We report the results of essentially ab initio simulations of creeping flow through large three-dimensional random fiber webs that closely resemble fibrous sheets such as paper and nonwoven fabrics. The computational scheme used in this Letter is that of the lattice-Boltzmann method and contains no free parameters concerning the properties of the porous medium or the dynamics of the flow. The computed permeability of the web is found to be in good agreement with experimental data, and confirms that permeability depends exponentially on porosity over a large range of porosity.