Modelling of non-Newtonian purely viscous flow through isotropic high porosity synthetic foams

Simple item page
dc.contributor.authorSmit G.J.F.
dc.contributor.authorDu Plessis J.P.
dc.date.accessioned2011-05-15T15:59:01Z
dc.date.available2011-05-15T15:59:01Z
dc.date.issued1999
dc.description.abstractA unified modelling theory for the prediction of the pressure drop of non-Newtonian purely viscous flow through isotropic high porosity synthetic foams is proposed. The model is derived by volumetrically averaging the equations of motion over an arbitrary two-phase system of stationary solids and a traversing fluid. Closure is obtained by using a formerly introduced rectangular representation of the pore space morphology. The shear rate dependency of the viscosity is incorporated through the shear stress in terms of the power-law model. The proposed model, which is based purely on physical principles with no artificial adjusting parameters, is compared to other predictive models in terms of friction factor as a function of the Reynolds number. Predicted pressure drop results are also compared to published experimental results to verify the validity of the model.
dc.description.versionArticle
dc.identifier.citationChemical Engineering Science
dc.identifier.citation54
dc.identifier.citation5
dc.identifier.issn92509
dc.identifier.other10.1016/S0009-2509(98)00264-4
dc.identifier.urihttp://hdl.handle.net/10019.1/10956
dc.subjectfoam
dc.subjectmathematical modeling
dc.subjectnon-Newtonian fluid
dc.subjectporous medium
dc.subjectpower law fluid
dc.subjectpressure drop
dc.titleModelling of non-Newtonian purely viscous flow through isotropic high porosity synthetic foams
dc.typeArticle
Files
Collections
Stellenbosch University - Scopus Publications