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Headway in large-eddy-simulation within the SPH models
dc.contributor.author | Antuono, M. |
dc.contributor.author | Di Mascio, A. |
dc.contributor.author | Marrone, S. |
dc.contributor.author | Meringolo, D.D. |
dc.contributor.author | Colagrossi, A. |
dc.date.accessioned | 2020-05-05T15:20:08Z |
dc.date.available | 2020-05-05T15:20:08Z |
dc.date.issued | 2019 |
dc.identifier.isbn | 978-84-121101-1-1 |
dc.identifier.uri | http://hdl.handle.net/2117/186387 |
dc.description.abstract | In the present paper we show some preliminary resuslts of a novel LES-SPH scheme that extends andgeneralizes the approach described in [2]. Differently from that work, the proposed scheme is based on the definition of a Quasi-Langragian Large-Eddy-Simulation model where a small velocity deviation is added to the actual fluid velocity. When the LES equations are rearranged in the SPH framework, the velocity deviation is modelled through the Particle Shifting Technique (PST), similary to the δplus-SPH scheme derived in [3]. The use of the PST allows for regular particle distributions, reducing the numerical errors in the evaluation of the spatial differential operators. As a preliminary study of the proposed model, we consider the evolution of freely decaying turbulence in 2D. In a particular we show that the present scheme predicts the correct tendencies for the direct and inverse energy cascades. |
dc.format.extent | 12 p. |
dc.language.iso | eng |
dc.publisher | CIMNE |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits |
dc.subject.lcsh | Finite element method |
dc.subject.lcsh | Computational methods in mechanics |
dc.subject.lcsh | Particle methods (Numerical analysis) |
dc.subject.other | Smoothed particle hydrodynamics, Large Eddy Simulation, turbulence, particle methods |
dc.title | Headway in large-eddy-simulation within the SPH models |
dc.type | Conference report |
dc.subject.lemac | Elements finits, Mètode dels |
dc.rights.access | Open Access |
local.citation.contributor | PARTICLES VI |
local.citation.startingPage | 23 |
local.citation.endingPage | 34 |