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Presenter: Dr. Bojan Markicevic - Post Doctoral Fellow, IESVic
Supervisor:

Date: Wed, July 9, 2003
Time: 15:30:00 - 16:30:00
Place: EOW 430

ABSTRACT

Abstract:

Fluid flow in porous medium have received increased interest in the composite materials processing, where a low viscosity resin impregnates a low permeability fibrous porous medium. In order to speed up the filling process, the porous medium is coupled with a layer (distribution layer) having larger permeability than the medium to be filled. The distribution layer can be in form of either the porous layer or the channel network.

This work deals with: i) the effectiveness concept of the filling process establishing optimal design criteria ii) the filling mechanisms of coupled porous medium/channel network system were investigated, where two main distinct mechanisms were identified as the channel volume and the number of channels dominated filling process. Finally, iii) in the third part, the influence of porous medium heterogeneities on the dry region formation and the repeatability of the filling process was investigated. The heterogeneities cause the dry region formation and non-repeatability of the filling process as observed from the existence of the scatter of dry region content. It was shown that the scatter can be bounded by coupling heterogeneous porous media by homogeneous one. The trade-off between processing and exploitation performance will be discussed in light of this study.