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A simple approach to discretize the viscous term with spatially varying (eddy-)viscosity
dc.contributor.author | Trias Miquel, Francesc Xavier |
dc.contributor.author | Gorobets, Andrei |
dc.contributor.author | Oliva Llena, Asensio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2013-11-28T14:02:15Z |
dc.date.created | 2013-11-15 |
dc.date.issued | 2013-11-15 |
dc.identifier.citation | Trias, F. X.; Gorobets, A.; Oliva, A. A simple approach to discretize the viscous term with spatially varying (eddy-)viscosity. "Journal of computational physics", 15 Novembre 2013, vol. 253, p. 405-417. |
dc.identifier.issn | 0021-9991 |
dc.identifier.uri | http://hdl.handle.net/2117/20836 |
dc.description.abstract | A simple approach to discretize the viscous dissipation term in the incompressible Navier–Stokes equations with spatially varying viscosity is presented. Unlike the case where the viscosity remains constant, its discretization may be quite cumbersome especially for high-order staggered formulations. To circumvent this problem, we propose an alternative form of the viscous term whose discretization is straightforward. Notice that this approach is also suitable for eddy-viscosity models for Large-Eddy Simulation. Moreover, since it is based on already available operators, it can be easily implemented on any structured or unstructured code. The (supra)convergence of the method is numerically shown on both a fourth-order Cartesian staggered and an unstructured collocated formulation. |
dc.format.extent | 13 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
dc.subject.lcsh | Fluid dynamics |
dc.subject.lcsh | Turbulence |
dc.subject.other | Large-Eddy Simulation |
dc.subject.other | Eddy-viscosity |
dc.subject.other | High-order schemes |
dc.subject.other | Symmetry-preserving discretization |
dc.subject.other | Staggered grid |
dc.subject.other | Unstructured grid |
dc.title | A simple approach to discretize the viscous term with spatially varying (eddy-)viscosity |
dc.type | Article |
dc.subject.lemac | Dinàmica de fluids |
dc.subject.lemac | Turbulència |
dc.contributor.group | Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
dc.identifier.doi | 10.1016/j.jcp.2013.07.021 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 11069717 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Trias, F. X.; Gorobets, A.; Oliva, A. |
local.citation.publicationName | Journal of computational physics |
local.citation.volume | 253 |
local.citation.startingPage | 405 |
local.citation.endingPage | 417 |
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