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dc.contributor.author
Rojas Fredini, Pablo Sebastián
dc.contributor.author
Limache, Alejandro Cesar
dc.date.available
2016-12-01T17:09:07Z
dc.date.issued
2013-09
dc.identifier.citation
Rojas Fredini, Pablo Sebastián; Limache, Alejandro Cesar; Evaluation of weakly compressible SPH variants using derived analytical solutions of Taylor-Couette flows; Elsevier; Computers & Mathematics With Applications (1987); 66; 3; 9-2013; 304-317
dc.identifier.issn
0898-1221
dc.identifier.uri
http://hdl.handle.net/11336/8579
dc.description.abstract
Smoothed particle hydrodynamics (SPH) is a relatively young meshless particle method used in fluid simulation. The method has not yet reached a mature state and still is in the need of rigorous evaluation tests that contribute to its consolidation as a reliable numerical method. With this need in mind, the first portion of this article is dedicated to presenting a new set of validation tests. The tests consist of different types of planar Taylor?Couette flows which will be equipped with their corresponding Navier?Stokes equations? analytical solutions. Analytical solutions have been found for compressible and weakly-compressible (WC) regimes. The second part of this article is dedicated to using the obtained solutions as evaluation tests of a WC-SPH variant based on the divergence form of the Navier?Stokes equations and on the simultaneous use of different kernels. The proposed variant is compared to other previous WC-SPH variants commonly used in the literature. Velocities as well as pressure profiles can be compared with the provided analytical solutions. The performed numerical experiments show that, although all the tested WC-SPH variants match quite correctly the theoretical velocity profile, the previous variants present highly noisy pressure profiles or even give erroneous pressure solutions. Among the evaluated WC-SPH formulations, the proposed variant does a better job in matching, both, velocity profiles and pressure profiles with much lower levels of noise.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Smoothed Particle Hydrodynamics
dc.subject
Navier-Stokes Equations
dc.subject
Taylor-Couette Flows
dc.subject.classification
Otras Ingeniería Mecánica
dc.subject.classification
Ingeniería Mecánica
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Evaluation of weakly compressible SPH variants using derived analytical solutions of Taylor-Couette flows
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-24T14:13:32Z
dc.journal.volume
66
dc.journal.number
3
dc.journal.pagination
304-317
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rojas Fredini, Pablo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico. Centro de Investigación de Métodos Computacionales; Argentina
dc.description.fil
Fil: Limache, Alejandro Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico. Centro de Investigación de Métodos Computacionales; Argentina
dc.journal.title
Computers & Mathematics With Applications (1987)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0898122113003106
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.camwa.2013.05.008


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