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dc.contributor.author
Aguerre, Horacio Javier  
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Pairetti, César Ignacio  
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Venier, César Martín  
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Marquez Damian, Santiago  
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Nigro, Norberto Marcelo  
dc.date.available
2019-10-17T17:26:45Z  
dc.date.issued
2018-07  
dc.identifier.citation
Aguerre, Horacio Javier; Pairetti, César Ignacio; Venier, César Martín; Marquez Damian, Santiago; Nigro, Norberto Marcelo; An oscillation-free flow solver based on flux reconstruction; Academic Press Inc Elsevier Science; Journal of Computational Physics; 365; 7-2018; 135-148  
dc.identifier.issn
0021-9991  
dc.identifier.uri
http://hdl.handle.net/11336/86165  
dc.description.abstract
In this paper, a segregated algorithm is proposed to suppress high-frequency oscillations in the velocity field for incompressible flows. In this context, a new velocity formula based on a reconstruction of face fluxes is defined eliminating high-frequency errors. In analogy to the Rhie–Chow interpolation, this approach is equivalent to including a flux-based pressure gradient with a velocity diffusion in the momentum equation. In order to guarantee second-order accuracy of the numerical solver, a set of conditions are defined for the reconstruction operator. To arrive at the final formulation, an outlook over the state of the art regarding velocity reconstruction procedures is presented comparing them through an error analysis. A new operator is then obtained by means of a flux difference minimization satisfying the required spatial accuracy. The accuracy of the new algorithm is analyzed by performing mesh convergence studies for unsteady Navier–Stokes problems with analytical solutions. The stabilization properties of the solver are then tested in a problem where spurious numerical oscillations arise for the velocity field. The results show a remarkable performance of the proposed technique eliminating high-frequency errors without losing accuracy.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Academic Press Inc Elsevier Science  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
COLLOCATED GRIDS  
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FINITE VOLUME METHOD  
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FLUX RECONSTRUCTION  
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SEGREGATED METHOD  
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VELOCITY OSCILLATIONS  
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Otras Ingeniería Mecánica  
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Ingeniería Mecánica  
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INGENIERÍAS Y TECNOLOGÍAS  
dc.title
An oscillation-free flow solver based on flux reconstruction  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-16T19:29:07Z  
dc.journal.volume
365  
dc.journal.pagination
135-148  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Aguerre, Horacio Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina  
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Fil: Pairetti, César Ignacio. Universidad Nacional de Rosario; Argentina  
dc.description.fil
Fil: Venier, César Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina  
dc.description.fil
Fil: Marquez Damian, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina  
dc.description.fil
Fil: Nigro, Norberto Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina  
dc.journal.title
Journal of Computational Physics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0021999118301931  
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jcp.2018.03.033