Microscopic Analysis of Flow and Prediction of Effective Permeability for Dual-scale Porous Fiber Fabrics

被引：0
|
作者：
Yan, Shilin [1 ]
Lu, Hang [1 ]
Tan, Hua [2 ]
Qiu, Zhongqi [1 ]
机构：
[1] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Peoples R China
[2] Univ Wisconsin, Dept Mech Engn, Milwaukee, WI USA
来源：
MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷
基金：
美国国家科学基金会;
关键词：
Liquid Composite Molding (LCM); Permeability; Numerical Simulation; Unit Cell; FIBROUS MEDIA; DOMAIN;
D O I：
10.4028/www.scientific.net/AMR.97-101.1776
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, the permeability of fiber fabric used in liquid composite molding (LCM) is predicted by the method of numerical simulation. The three-dimensional finite element model of unit cell representing the periodic micro-structure of a plaid is established. In the process of numerical simulation, each fiber bundle in unit cell is treated as a porous medium. Stokes equation and Darcy's law are employed to model the saturated flow between the fiber bundles and the saturated flow in the fiber bundle, respectively. Steady state flow of the finite element model of unit cell is simulated. The effective permeability of the plaid is obtained from the postprocessing of the simulation results by using Darcy's law.
引用
收藏
页码：1776 / +
页数：2
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