Modeling wicking in textiles using the dual porosity approach
Modeling wicking in textiles using the dual porosity approach
复制标题
使用双孔隙率方法模拟纺织品中的芯吸现象
DOI：
10.1177/0040517518758007
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发表时间：
2019
影响因子：
2.3
通讯作者：
J. Carmeliet
中科院分区：
文献类型：
--
作者：
M. Parada;Xiaohai Zhou;D. Derome;R. Rossi;J. Carmeliet
我们开发了一个双重孔隙扩散模型来模拟纺织品中复杂的动态排汗行为：纱线内部的排汗以及纱线之间空隙的排汗。该模型扩展了理查兹方程，以考虑两个孔隙系统之间的质量交换。然而，这种交换对于棉织物来说似乎非常小，并且该系统似乎表现为两个平行的孔隙系统。纱线孔隙系统的吸水率主要受织物结构（机织物和针织物）的影响，而孔隙系统在吸水时所能达到的最大含水率是不同的。重力被证明起着重要的作用，特别是对于粗糙的孔隙系统。
We develop a dual porosity diffusivity model to simulate the complex dynamic wicking behavior in textiles: wicking inside yarns coupled with wicking in the voids in between the yarns. The model expands the Richards equation to account for mass exchange between the two pore systems. This exchange, however, appears to be very small for cotton textiles and the system appears to behave as two parallel pore systems. The water uptake in the yarn pore system is mostly affected by the textile structure (woven versus knit), while the void pore system differs in the maximum moisture content that can be achieved during uptake. Gravity is shown to play an important role, especially for the coarser void pore system.