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dc.contributor.authorLehmkuhl, Oriol
dc.contributor.authorHouzeaux, Guillaume
dc.contributor.authorOwen, Herbert
dc.contributor.authorChrysokentis, Giorgios
dc.contributor.authorRodríguez Pérez, Ivette María
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.identifier.citationLehmkuhl, O. [et al.]. A low-dissipation finite element scheme for scale resolving simulations of turbulent flows. "Journal of computational physics", 1 Agost 2019, vol. 390, p. 51-65.
dc.description.abstractThe present work extends the conservative convective scheme proposed by Charnyi et al. (2017) [13], originally formulated for mixed finite elements and tested in laminar flows, to equal order finite elements. A non-incremental fractional-step method is used to stabilise pressure, allowing the use of finite element pairs that do not satisfy the inf-sup conditions, such as equal order interpolation for the velocity and pressure used in this work. The final scheme preserves momentum and angular momentum at the discrete level; the error in the conservation of kinetic energy introduced by this stabilisation is of O (dt,h^2) in the case of linear finite elements. The low dissipation strategy is tested on a set of relevant turbulent cases. First, by using direct numerical simulation on the inviscid and viscous Taylor-Green vortex problem at Re =1600 and later, coupled with the Vreman (2004) [25]sub-grid stress model for performing large-eddy simulations on a turbulent channel flow at Ret=950, the flow past a sphere at ReD=10^4 and the flow around an Ahmed body at ReH=2 ×10^5. In all cases the performance of the presented formulation is fairly good and it has been capable of reproducing the reference results with good accuracy.
dc.format.extent15 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshTurbulence--Computer simulation
dc.subject.lcshFinite element method
dc.subject.otherFinite elements
dc.subject.otherLow-dissipation schemes
dc.subject.otherTurbulent flows
dc.subject.otherLarge-eddy simulation
dc.subject.otherDirect numerical simulation
dc.titleA low-dissipation finite element scheme for scale resolving simulations of turbulent flows
dc.subject.lemacTurbulència -- Simulació numèrica
dc.subject.lemacRemolins (Mecànica de fluids)
dc.subject.lemacElements finits, Mètode dels
dc.contributor.groupUniversitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
upcommons.citation.authorLehmkuhl, O.; Houzeaux, G.; Owen, H.; Chrysokentis, G.; Rodriguez, I.
upcommons.citation.publicationNameJournal of computational physics

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