Mostrar el registro sencillo del ítem
dc.contributor.author
Limache, Alejandro Cesar
dc.contributor.author
Idelsohn, Sergio Rodolfo
dc.date.available
2017-07-27T17:36:10Z
dc.date.issued
2006-11
dc.identifier.citation
Limache, Alejandro Cesar; Idelsohn, Sergio Rodolfo; Laplace Form Of Navier-Stokes Equations: A Safe Path Or A Wrong Way?; Asociacion Argentina de Mecanica Computacional; Mecánica Computacional; XXV; 2; 11-2006; 151-168
dc.identifier.issn
1666-6070
dc.identifier.uri
http://hdl.handle.net/11336/21464
dc.description.abstract
The Navier-Stokes Equations written in Laplace form are often the departure point for the simulation of viscous newtonian flows and some studies of numerical stability. Researchers may not be fully aware that the “physical traction boundary conditions” are not the “natural boundary conditions” of the Laplace form of the Navier-Stokes Equations. This is not a problem per se, as long as one manages to rigurously incorporate the physical boundary conditions into the formulation. However, we have discovered that if some seemenly harmless assumptions are made, like using pseudo-tractions (i.e the natural boundary conditions of the Laplace form) or neglecting viscous terms on the free-surfaces, the resulting formulation violates a basic axiom of continuum mechanics: the principle of objectivity. In the present article we give an accurate account about these topics. We also show that unexpected differences may sometimes arise between Laplace discretizations and Divergence discretizations.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Asociacion Argentina de Mecanica Computacional
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Objectivity
dc.subject
Natural Boundary Conditions
dc.subject
Navier-Stokes Equations
dc.subject
Finite Elementmethod,
dc.subject.classification
Otras Ingeniería Mecánica
dc.subject.classification
Ingeniería Mecánica
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Laplace Form Of Navier-Stokes Equations: A Safe Path Or A Wrong Way?
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-26T15:23:45Z
dc.journal.volume
XXV
dc.journal.number
2
dc.journal.pagination
151-168
dc.journal.pais
Argentina
dc.description.fil
Fil: Limache, Alejandro Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Idelsohn, Sergio Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Mecánica Computacional
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/view/486
Archivos asociados