Título:
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A new statistical model for subgrid dispersion in large eddy simulations of particle-laden flows
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Autor/a:
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Muela Castro, Jordi; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Oliva Llena, Asensio
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
Abstract:
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This article is published under a CC BY licence. The Version of Record is available online at: http.//dx.doi.org/10.1088/1742-6596/745/3/032115 |
Abstract:
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Dispersed multiphase turbulent flows are present in many industrial and commercial applications like
internal combustion engines, turbofans, dispersion of contaminants, steam turbines, etc. Therefore, there is a clear
interest in the development of models and numerical tools capable of performing detailed and reliable simulations
about these kind of flows. Large Eddy Simulations offer good accuracy and reliable results together with reasonable
computational requirements, making it a really interesting method to develop numerical tools for particle-laden turbulent
flows. Nonetheless, in multiphase dispersed flows additional difficulties arises in LES, since the effect of the unresolved
scales of the continuous phase over the dispersed phase is lost due to the filtering procedure. In order to solve this
issue a model able to reconstruct the subgrid velocity seen by the particles is required. In this work a new model for
the reconstruction of the subgrid scale effects over the dispersed phase is presented and assessed. This innovative
methodology is based in the reconstruction of statistics via Probability Density Functions (PDFs). |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica -Computational fluid dynamics -Turbulence--Computer simulation -LES -Lagrangian-Eulerian -SGS Model -Particle-laden flows -PDFs -Mecànica de fluids computacional -Turbulència -- Simulació numèrica |
Derechos:
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http://creativecommons.org/licenses/by/3.0/es/ |
Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
Editor:
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Institute of Physics (IOP)
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