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首页> 外文会议>International Conference on Manufacturing Science and Engineering >Microscopic Analysis of Flow and Prediction of Effective Permeability for Dual-scale Porous Fiber Fabrics
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Microscopic Analysis of Flow and Prediction of Effective Permeability for Dual-scale Porous Fiber Fabrics

机译：双尺度多孔纤维织物有效渗透性的流动和预测的微观分析

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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.
机译：本文通过数值模拟方法预测了液体复合成型（LCM）中使用的纤维织物的渗透率。建立了代表格子的周期性微结构的单元电池的三维有限元模型。在数值模拟的过程中，单位电池中的每个纤维束被视为多孔介质。 Stokes方程和达西法律分别用于将纤维束和纤维束中的饱和流之间的饱和流模拟。模拟单元电池有限元模型的稳态流动。通过使用Darcy的定律，从模拟结果的后处理获得了格子的有效渗透性。

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