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Theoretical Approach for Determining Pore Characteristics Between Fibers

机译:确定纤维间孔隙特征的理论方法

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摘要

This theoretical work describes pores between fibers in general fiber assemblies. The basic idea is to treat the pores between fibers―under certain assumptions―as air fibers surrounded by fictional borders. Different pore characteristics are formulated from basic definitions of fiber assemblies. It is possible to find alternative theoretical definitions for pores of any shape by introducing the so-called fictive pore borders. Four different definitions of pores―conventional pores, pores with a constant shape factor, pores with a constant length, and generalized pores―are mathematically derived based on the geometric structural characteristics of any fiber assembly such as packing density, equivalent pore diameter, pore length, and other variables. The well-known Hagen-Poiseuille law of flow and the Carmen-Kozeny equation are discussed in the course of deriving equations. Possible applications of these derived equations in the fields of capillarity phenomenon, fluid flow, and filtration are introduced.
机译:这项理论工作描述了普通纤维组件中纤维之间的孔。基本思想是将纤维之间的孔(在某些假设下)视为被虚构边界包围的空气纤维。根据纤维组件的基本定义可以得出不同的孔隙特征。通过引入所谓的虚拟孔边界,可以找到任何形状的孔的替代理论定义。根据任何纤维组件的几何结构特征,例如堆积密度,等效孔径,孔径,从数学上得出四种不同的孔定义:常规孔,形状系数恒定的孔,长度恒定的孔和广义孔,以及其他变量。在推导方程的过程中,讨论了著名的哈根-泊瓦依流定律和Carmen-Kozeny方程。介绍了这些推导方程在毛细现象,流体流动和过滤领域的可能应用。

著录项

  • 来源
    《Textile Research Journal》 |2003年第7期|p.611-619|共9页
  • 作者

    BOHUSLAV NECKAR; SAYED IBRAHIM;

  • 作者单位

    Textile Structure Department, Technical University of Liberec, Liberec, Czech Republic;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 纺织工业、染整工业;
  • 关键词

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