Radial flow permeability measurement. Part A: Theory
Weitzenbock, J.R., Shenoi, R.A. and Wilson, P.A. (1999) Radial flow permeability measurement. Part A: Theory. Composites Part A: Applied Science and Manufacturing (Incorporating Composites and Composites Manufacturing), 30, (6), 781-796. (doi:10.1016/S1359-835X(98)00183-3).
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This paper deals with permeability measurement in the context of Resin Transfer Moulding (RTM). A new approach to two-dimensional radial flow permeability measurement with constant inlet pressure is proposed. It allows principal permeability to be measured even if the experimental axes are not aligned with the principal direction. This part of the paper looks at the underlying theory of the new approach while part B reports on validation experiments. Formulae are derived which allow to calculate principal permeability and the orientation of the principal axes from flow front measurements in three directions. Transient effects of the developing flow front caused by the circular inlet are discussed and its influence on the measured permeability is illustrated. Numerical studies are performed which show that the shape of the flow front is dependent only on the size of the inlet diameter and the degree of anisotropy. This leads to the development of a formula for estimating the minimum required mould size for permeability measurement.
|Keywords:||permeability measurement, e resin transfer moulding (rtm)|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
|Date Deposited:||29 Apr 2008|
|Last Modified:||01 Jun 2011 12:04|
|Contributors:||Weitzenbock, J.R. (Author)
Shenoi, R.A. (Author)
Wilson, P.A. (Author)
|Contact Email Address:||firstname.lastname@example.org|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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