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A methodology to characterize fiber preform permeability by using Kardar-Parisi-Zhang equation

Şaş Çaycı, Hatice Sinem and Simacek, Pavel and Advani, Suresh G. (2019) A methodology to characterize fiber preform permeability by using Kardar-Parisi-Zhang equation. Journal of Porous Media, 22 (7). pp. 799-811. ISSN 1091-028X (Print) 1934-0508 (Online)

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Official URL: http://dx.doi.org/10.1615/JPorMedia.2019021772

Abstract

Permeability tensor describes the resistance to fluid flow through the fibrous porous media, which may not be spatially uniform. This nonuniformity in fiber architecture causes variation in the permeability value of the fibrous domain. The time evolution and geometry of the rough interfaces of the fluid flow in fibrous porous medium are analyzed using the concepts of dynamic scaling and self-affine fractal geometry, and they are shown to belong to the Kardar–Parisi– Zhang (KPZ) universality class. The resulting growth exponent, β is found to match the 1 + 1 KPZ values, and the roughness exponent, α, describes the standard deviation of the variation in fiber preform permeability. Additionally, this characterization is used to develop a tool to quantify the percentage and strength of defects within the fibrous porous media from flow front profile analysis.

Item Type:Article
Uncontrolled Keywords:permeability; Roughness; KPZ equation
Subjects:T Technology > TS Manufactures > TS1300 Textile industries
ID Code:38272
Deposited By:Hatice Sinem Şaş Çaycı
Deposited On:25 Aug 2019 13:40
Last Modified:25 Aug 2019 13:40

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