dc.contributor.author | Georgiou, Georgios C. | en |
dc.contributor.author | Olson, L. G. | en |
dc.contributor.author | Schultz, W. W. | en |
dc.contributor.author | Sagan, S. | en |
dc.creator | Georgiou, Georgios C. | en |
dc.creator | Olson, L. G. | en |
dc.creator | Schultz, W. W. | en |
dc.creator | Sagan, S. | en |
dc.date.accessioned | 2019-12-02T10:35:18Z | |
dc.date.available | 2019-12-02T10:35:18Z | |
dc.date.issued | 1989 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/56863 | |
dc.description.abstract | Abrupt changes in boundary conditions in viscous flow problems give rise to stress singularities. Ordinary finite element methods account effectively for the global solution but perform poorly near the singularity. In this paper we develop singular finite elements, similar in principle to the crack tip elements used in fracture mechanics, to improve the solution accuracy in the vicinity of the singular point and to speed up the rate of convergence. These special elements surround the singular point, and the corresponding field shape functions embody the form of the singularity. Because the pressure is singular, there is no pressure node at the singular point. The method performs well when applied to the stick–slip problem and gives more accurate results than those from refined ordinary finite element meshes. Copyright © 1989 John Wiley & Sons, Ltd | en |
dc.source | International Journal for Numerical Methods in Fluids | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0024770652&doi=10.1002%2ffld.1650091105&partnerID=40&md5=8561d1b061a3f079a31cd090638f4ad4 | |
dc.subject | Flow of Fluids | en |
dc.subject | Stokes flow | en |
dc.subject | Singular finite elements | en |
dc.subject | Stress singularity | en |
dc.subject | Mathematical Techniques--Finite Element Method | en |
dc.subject | Dies--Stresses | en |
dc.subject | Fluid Mechanics | en |
dc.subject | Fluids--Viscosity | en |
dc.subject | Stick Slip Problem | en |
dc.title | A singular finite element for Stokes flow: The stick–slip problem | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1002/fld.1650091105 | |
dc.description.volume | 9 | |
dc.description.issue | 11 | |
dc.description.startingpage | 1353 | |
dc.description.endingpage | 1367 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics | |
dc.type.uhtype | Article | en |
dc.source.abbreviation | Int.J.Numer.Methods Fluids | en |
dc.contributor.orcid | Georgiou, Georgios C. [0000-0002-7451-224X] | |
dc.gnosis.orcid | 0000-0002-7451-224X | |