Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/63464

TitleImplementation of partial slip boundary conditions in an open-source finite-volume-based computational library
Author(s)Fernandes, Célio
Ferrás, Luís Jorge Lima
Habla, Florian
Carneiro, O. S.
Nóbrega, J. M.
KeywordsLinear Navier slip
Nonlinear Navier slip
OpenFOAM
Partial slip boundary condition
Profile extrusion
Issue date2019
PublisherWalter de Gruyter GmbH
JournalJournal of Polymer Engineering
CitationFernandes, C., Ferrás, L. L., Habla, F., Carneiro, O. S., & Nóbrega, J. M. (2019). Implementation of partial slip boundary conditions in an open-source finite-volume-based computational library. Journal of Polymer Engineering, 39(4), 377-387
Abstract(s)This paper reports the implementation of slip boundary conditions in the open-source computational library OpenFOAM. The linear and nonlinear Navier slip laws, which are newly implemented in this paper, can be used both for Newtonian and viscoelastic constitutive models. For the former case, the Couette flow assumption near the wall is employed, and for the latter, the cell-centered extra-stress tensor components are linearly extrapolated to the wall. The validation is performed by comparing the numerical results obtained for Newtonian and simplified Phan-Thien-Tanner constitutive model fluids in Couette and Poiseuille flows, with existing analytical solutions. The results obtained using different slip factors were shown to be in agreement with the analytical solutions, even for the most extreme cases where the slip factor is high enough to induce a plug flow pattern for the velocity field. The newly implemented boundary conditions are also used to study the influence of slip in polymer processing, namely in the production of an extruded profile. The results obtained show that the developed slip boundary conditions are able to deal with complex geometrical problems, and are an important tool to support the search of a balanced flow distribution in the design of profile extrusion dies.
TypeArticle
URIhttps://hdl.handle.net/1822/63464
DOI10.1515/polyeng-2018-0343
ISSN2191-0340
e-ISSN0334-6447
Publisher versionhttps://www.degruyter.com/view/j/polyeng.2019.39.issue-4/polyeng-2018-0343/polyeng-2018-0343.xml
Peer-Reviewedyes
AccessRestricted access (Author)
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

Files in This Item:
File Description SizeFormat 
2019_JournalPaper_JPE_SlipOpenFOAM_Celio.pdf
  Restricted access
1,13 MBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID