Breakdown of similarity solutions: a perturbation approach for front propagation during foam-improved oil recovery

Simple item page
datacite.alternateIdentifier.citationPROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,Vol.477,,2021
datacite.alternateIdentifier.doi10.1098/rspa.2020.0691
datacite.creatorTorres-Ulloa, Carlos
datacite.creatorGrassia, Paul
datacite.date2021
datacite.subject.englishpressure-driven growth model
datacite.subject.englishfoams
datacite.subject.englishfront propagation
datacite.subject.englishporous media
datacite.subject.englishTaylor expansion
datacite.titleBreakdown of similarity solutions: a perturbation approach for front propagation during foam-improved oil recovery
dc.date.accessioned2021-04-30T17:07:23Z
dc.date.available2021-04-30T17:07:23Z
dc.description.abstractThe pressure-driven growth model has been employed to study a propagating foam front in the foam-improved oil recovery process. A first-order solution of the model proves the existence of a concave corner on the front, which initially migrates downwards at a well defined speed that differs from the speed of front material points. At later times, however, it remains unclear how the concave corner moves and interacts with points on the front either side of it, specifically whether material points are extracted from the corner or consumed by it. To address these questions, a second-order solution is proposed, perturbing the aforementioned first-order solution. However, the perturbation is challenging to develop, owing to the nature of the first-order solution, which is a similarity solution that exhibits strong spatio-temporal non-uniformities. The second-order solution indicates that the corner's vertical velocity component decreases as the front migrates and that points initially extracted from the front are subsequently consumed by it. Overall, the perturbation approach developed herein demonstrates how early-time similarity solutions exhibiting strong spatio-temporal non-uniformities break down as time proceeds.
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/4164
dc.language.isoen
dc.publisherROYAL SOC
dc.sourcePROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
oaire.resourceTypeWOS
oaire.resourceType.enArticle
uct.catalogadorWOS
uct.indizacionSCI
Files
Collections
Migración Web of Science