Experimental determination of in-plane permeability of nonwoven thin fibrous materials

Knowledge of hydraulic properties is crucial for understanding and modeling fluid flow in thin porous media. In this work, we have developed a new simple custom-built apparatus to measure the intrinsic permeability of a single thin fibrous sheet in the in-plane direction. The permeability was measur...

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Bibliographic Details
Published in:Textile research journal 2023-10, Vol.93 (19-20), p.4656-4661
Main Authors: Zhuang, Luwen, Hassanizadeh, S Majid, Qin, Chao-Zhong
Format: Article
Language:English
Subjects:
Fiber orientation
Fibrous materials
Fluid flow
Hydraulic properties
Permeability
Porous materials
Porous media
Porous media flow
Vapor phases
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Summary:Knowledge of hydraulic properties is crucial for understanding and modeling fluid flow in thin porous media. In this work, we have developed a new simple custom-built apparatus to measure the intrinsic permeability of a single thin fibrous sheet in the in-plane direction. The permeability was measured for two types of nonwoven thin fibrous porous materials using either the water or gas phase. For each layer, the measurements have been done for different combinations of flow direction and fiber orientation. The permeability values measured using gas and water were approximately close to each other. The permeability of the two samples was found to be anisotropic and the principal permeabilities were determined based on the measurements.
ISSN:0040-5175
1746-7748
DOI:10.1177/00405175231181089