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Abstract

We present a computational analysis of viscous flow through arrays of fiber bundles using the Boundary Element Method (BEM) implemented on a multi-processor computer. Up to 700 individual fibers are included in each simulation. These are simple but not trivial models for fibrous preforms used in composites manufacturing-dual porosity systems characterized by different inter- and intra-tow porosities. The way these porosities affect the hydraulic permeability of a preform is currently unknown and is elucidated through our simulations. Numerical results are compared to analytical models. Through a large number of simulations we construct a master curve for the permeability of arrays of fiber bundles for various packing arrangements.

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References

Bruschke

M. V.

, and Advani

S. G.

, J. Rheol., 37, 479–498, (1993).

Sangani

A. G.

, and Acrivos

, Int. J. Multiphase Flow, 8(3), 193–206, (1982).

Gebart

B. R.

, J. Comp. Mat., 26(8), 1100, (1992).

Drummond

J. E.

, and Tahir

M. I.

, Int. J. Multiphase Flow, 10, 515–540, (1984).

Kuwabara

J. Phys. Soc. Japan, 14, 527, (1957).

Phelan

F.R.

Jr. and Wise

, Composites, Part A, 27A, (1), 25–33, (1996).

Ranganathan

, Phelan

F.R.

Jr. and Advani

S. G.

, Polymer Composites, 17, No. 2, (April 1996), pp. 222–230.

Darcy

H. P. G.

, Les fontaines publiques de la ville deDijon, Dalmont, Paris, (1856).

Brebbia

, and Dominquez

, Boundary Elements, An Introductory Course, 2nd Edition, McGraw-Hill Inc. (1992).

10.

Brinkman

H. C.

, Appl. Sci. Res., A1, 27–34, (1947).

11.

Papathanasiou

T. D.

, Int. J. Multiphase Flow, 23(1), 81–92, (1997).

12.

Sadiq

T. A. K.

, Advani

S. G.

, and Parnas

R. S.

, Int. J. Multiphase Flow, 21(5), 755–774, (1995).

13.

Papathanasiou

T. D.

, Comp. Sci. Tech., 56, 1055(1996).

The Hydraulic Permeability of Dual Porosity Fibrous Media

Abstract

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