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dc.contributor.author
Cimino, Andrés Martín  
dc.contributor.author
Krause, Gustavo Javier  
dc.contributor.author
Elaskar, Sergio Amado  
dc.contributor.author
Costa, Andrea  
dc.date.available
2022-11-30T14:15:33Z  
dc.date.issued
2016-01  
dc.identifier.citation
Cimino, Andrés Martín; Krause, Gustavo Javier; Elaskar, Sergio Amado; Costa, Andrea; Characteristic boundary conditions for magnetohydrodynamics: The Brio-Wu shock tube; Pergamon-Elsevier Science Ltd; Computers & Fluids; 127; 1-2016; 194-210  
dc.identifier.issn
0045-7930  
dc.identifier.uri
http://hdl.handle.net/11336/179537  
dc.description.abstract
In the present paper we develop and test a characteristic-based boundary condition (BC) scheme for the compressible magnetohydrodynamic equations, as the extension of a characteristic gasdynamics BC model. We use a Harten-Yee finite volume scheme for the spatial discretization of the domain, and a TVD Backward Euler time integrator for the sake of robustness. First we verify that the scheme works correctly for gasdynamic initial conditions (i.e., when B= 0), comparing with both analytical and experimental data. We then test the BC scheme with the Brio and Wu shock tube for two different types of boundaries: an open end and solid walls. We present a comparison between results obtained with the zeroth-order extrapolated BC scheme and the characteristic scheme developed. For a solid wall condition, we found discrepancies between both schemes when perturbations in the transverse magnetic field component (By) reach the boundaries. Also for the open end condition some discrepancies appear between the characteristic and extrapolated schemes, presenting the latter some instabilities. The results obtained with the characteristic scheme are smoother but presented a different wave pattern, which we believe is physical.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Pergamon-Elsevier Science Ltd  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
BOUNDARY CONDITIONS  
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FINITE VOLUME  
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HARTEN-YEE  
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MHD  
dc.subject.classification
Física de los Fluidos y Plasma  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Characteristic boundary conditions for magnetohydrodynamics: The Brio-Wu shock tube  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2022-11-30T13:22:18Z  
dc.journal.volume
127  
dc.journal.pagination
194-210  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Cimino, Andrés Martín. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina  
dc.description.fil
Fil: Krause, Gustavo Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina  
dc.description.fil
Fil: Elaskar, Sergio Amado. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina  
dc.description.fil
Fil: Costa, Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina  
dc.journal.title
Computers & Fluids  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0045793016000128  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.compfluid.2016.01.001