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DNS and regularization modeling of a turbulent differentially heated cavity of aspect ratio 5
dc.contributor.author | Trias Miquel, Francesc Xavier |
dc.contributor.author | Gorobets, Andrei |
dc.contributor.author | Oliva Llena, Asensio |
dc.contributor.author | Pérez Segarra, Carlos David |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics |
dc.date.accessioned | 2017-05-02T14:37:13Z |
dc.date.available | 2017-05-02T14:37:13Z |
dc.date.issued | 2013-01-15 |
dc.identifier.citation | Trias, F. X., Gorobets, A., Oliva, A., Perez, C. DNS and regularization modeling of a turbulent differentially heated cavity of aspect ratio 5. "International journal of heat and mass transfer", 15 Gener 2013, vol. 57, núm. 1, p. 171-182. |
dc.identifier.issn | 0017-9310 |
dc.identifier.uri | http://hdl.handle.net/2117/103914 |
dc.description.abstract | This work is devoted to the study of turbulent natural convection flows in differentially heated cavities. The adopted configuration corresponds to an airfilled (Pr = 0.7) cavity of aspect ratio 5 and Rayleigh number Ra = 4.5 × 1010 (based on the cavity height). Firstly, a complete direct numerical simulation (DNS) has been performed. Then, the DNS results have been used as reference solution to assess the performance of symmetry-preserving regularization as a simulation shortcut: a novel class of regularization that restrain the convective production of small scales of motion in an unconditionally stable manner. In this way, the new set of equations is dynamically less complex than the original Navier-Stokes equations, and therefore more amenable to be numerically solved. Direct comparison with the DNS results shows fairly good agreement even for very coarse grids. |
dc.format.extent | 12 p. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids |
dc.subject.lcsh | Turbulence--Simulation methods |
dc.subject.lcsh | Heat--Convection |
dc.subject.other | Differentially heated cavity |
dc.subject.other | Natural convection |
dc.subject.other | Turbulence |
dc.subject.other | DNS |
dc.subject.other | Regularization modeling |
dc.subject.other | Symmetry-preserving |
dc.title | DNS and regularization modeling of a turbulent differentially heated cavity of aspect ratio 5 |
dc.type | Article |
dc.subject.lemac | Turbulència -- Simulació per ordinador |
dc.subject.lemac | Calor -- Convecció |
dc.contributor.group | Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2012.09.064 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0017931012007776 |
dc.rights.access | Open Access |
local.identifier.drac | 11055244 |
dc.description.version | Postprint (author's final draft) |
local.citation.author | Trias, F. X.; Gorobets, A.; Oliva, A.; Perez, C. |
local.citation.publicationName | International journal of heat and mass transfer |
local.citation.volume | 57 |
local.citation.number | 1 |
local.citation.startingPage | 171 |
local.citation.endingPage | 182 |
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