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首页> 外文期刊>The Journal of the Textile Institute. Part 3, Technologies for a New Century >Bulk Liquid-transport Properties of Multi-layered Fibrous Absorbents
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Bulk Liquid-transport Properties of Multi-layered Fibrous Absorbents

机译：多层纤维状吸收剂的本体液体传输性质

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摘要

Inhomogeneous fibrous materials are used in many absorbent applications. Such materials often consist of multiple layers, where each layer may play a different role in absorbing liquid (for example, rapid acquisition compared with long-term storage). Simple functional-closure relationships for describing flow in multi-layered materials are developed on the basis of solutions to steady-state vertical upwards and downwards infiltration. These relationships enable multiple-layered structures to be accurately modelled as homogeneous materials. Full numerical calculations confirm that these bulk-closure relations predict steady flows in multi-layered materials. The bulk models of infiltration are tested for unsteady horizontal infiltration against full numerical calculations and shown to predict the length of the wetted region and the moisture distribution, except near the front of the capillary fringe. Some consequences for the design of absorbent products are discussed.
机译：不均匀的纤维材料被用于许多吸收性应用中。此类材料通常由多层组成，其中每一层在吸收液体方面可能发挥不同的作用（例如，与长期存储相比，其快速获取）。在描述稳态垂直向上和向下渗透的解决方案的基础上，开发了用于描述多层材料中流动的简单功能关闭关系。这些关系使多层结构可以准确地建模为均质材料。完全的数值计算证实了这些堆积关系可以预测多层材料中的稳定流动。针对完整的数值计算测试了整体渗透模型的非稳态水平渗透，并显示了预测的润湿区域的长度和水分分布，除了毛细管边缘的前端附近。讨论了吸收性产品设计的一些后果。

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