Abo Bibliothek: Guest
Digitales Portal Digitale Bibliothek eBooks Zeitschriften Referenzen und Berichte Forschungssammlungen
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

ISSN Druckformat: 2152-5102
ISSN Online: 2152-5110

Volumes:
Volumen 46, 2019 Volumen 45, 2018 Volumen 44, 2017 Volumen 43, 2016 Volumen 42, 2015 Volumen 41, 2014 Volumen 40, 2013 Volumen 39, 2012 Volumen 38, 2011 Volumen 37, 2010 Volumen 36, 2009 Volumen 35, 2008 Volumen 34, 2007 Volumen 33, 2006 Volumen 32, 2005 Volumen 31, 2004 Volumen 30, 2003 Volumen 29, 2002 Volumen 28, 2001 Volumen 27, 2000 Volumen 26, 1999 Volumen 25, 1998 Volumen 24, 1997 Volumen 23, 1996 Volumen 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.2018022638
pages 339-354

NUMERICAL INVESTIGATION OF EFFECT OF FIBER PROPERTIES ON THROUGH-PLANE PERMEABILITY OF A 3D FIBROUS MEDIUM

Nikhil Kumar Palakurthi
Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0072, USA
Santosh Roopak Dungi
Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0072, USA
Urmila Ghia
Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, Ohio 45221-0072, USA
Ken Comer
Procter and Gamble, Cincinnati, Ohio 45201, USA

ABSTRAKT

Darcy permeability is an important parameter that characterizes creeping flow through a fibrous porous medium. It has a complex dependence on the medium's properties, such as porosity and fiber diameter, orientation (in-plane and through-plane), aspect ratio, and curvature. The present study investigates the effect of the aforementioned fiber properties on the through-plane permeability of a fibrous medium. A suite of 3D virtual fibrous structures with a wide range of geometric properties was constructed, and the flow field in the interfiber void space was obtained by solving the 3D incompressible Navier-Stokes equations. For a fixed in-plane and through-plane orientation of the fibers, the permeability was observed to increase as the fiber diameter increases (for a given porosity), and the permeability was found to decrease as the porosity decreases (for a fixed fiber diameter). The numerical results confirmed that the "square of the fiber diameter" is an appropriate normalizing parameter for permeability. For a fixed porosity, the through-plane permeability was found to be independent of the in-plane fiber orientation and increased nonlinearly with an increase in preferential orientation of fibers along the through-plane (flow direction in this study). Also, it was found that the effect of fiber aspect ratio and curvature on permeability was minimal. Finally, the numerical results were used to develop a general expression for through-plane permeability of fibrous media that is applicable for a wide range of porosities and fiber orientations.


Articles with similar content:

PREDICTION OF THE EFFECTIVE PERMEABILITY COEFFICIENT IN RANDOM POROUS MEDIA USING THE FINITE ELEMENT METHOD
Journal of Porous Media, Vol.17, 2014, issue 9
Soufiane Belhouideg, Manuel Lagache
A REDUCED COMPUTATIONAL MODEL FOR PREDICTION OF ELECTRICAL RESISTANCE IN FIBROUS COMPOSITES
International Journal for Multiscale Computational Engineering, Vol.12, 2014, issue 5
Xiaobo Guo, Maciej S. Kumosa, Yun-Bo Yi
NUMERICAL SOLUTION OF FLUID FLOW AND CONJUGATE HEAT TRANSFER IN A CHANNEL FILLED WITH FIBROUS POROUS MEDIA-A LATTICE BOLTZMANN METHOD APPROACH
Journal of Porous Media, Vol.17, 2014, issue 12
Abbas Abbassi, Alireza Salehi, Mohsen Nazari
On the Prediction of Darcy Permeability in Nonisotropic Periodic Two-Dimensional Porous Media
Journal of Porous Media, Vol.7, 2004, issue 2
Mouaouia Firdaouss, J. Prieur Duplessis
UNIDIRECTIONAL BANANA-EPOXY-REINFORCED COMPOSITE: EXPERIMENTATION AND THEORETICAL ESTIMATION
Composites: Mechanics, Computations, Applications: An International Journal, Vol.1, 2010, issue 3
A. A. Shaikh, PIYUSH GOHIL