Modeling of high Reynolds number flows with solid body rotation or magnetic fields

We present two models for turbulent flows with periodic boundary conditions and with either rotation, or a magnetic field in the magnetohydrodynamics (MHD) limit. One model, based on Lagrangian averaging, can be viewed as an invariant-preserving filter, whereas the other model, based on spectral clo...

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Detalles Bibliográficos
Autor principal: Mininni, Pablo Daniel
Publicado: 2010
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16122909_v110_n_p287_Pouquet
http://hdl.handle.net/20.500.12110/paper_16122909_v110_n_p287_Pouquet
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_16122909_v110_n_p287_Pouquet
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spelling paper:paper_16122909_v110_n_p287_Pouquet2023-06-08T16:25:13Z Modeling of high Reynolds number flows with solid body rotation or magnetic fields Mininni, Pablo Daniel We present two models for turbulent flows with periodic boundary conditions and with either rotation, or a magnetic field in the magnetohydrodynamics (MHD) limit. One model, based on Lagrangian averaging, can be viewed as an invariant-preserving filter, whereas the other model, based on spectral closures, generalizes the concepts of eddy viscosity and eddy noise. These models, when used separately or in conjunction, may lead to substantial savings for modeling high Reynolds number flows when checked against high resolution direct numerical simulations (DNS), the examples given here being run on grids of up to 15363 points. © 2010 Springer-Verlag Berlin Heidelberg. Fil:Mininni, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16122909_v110_n_p287_Pouquet http://hdl.handle.net/20.500.12110/paper_16122909_v110_n_p287_Pouquet
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We present two models for turbulent flows with periodic boundary conditions and with either rotation, or a magnetic field in the magnetohydrodynamics (MHD) limit. One model, based on Lagrangian averaging, can be viewed as an invariant-preserving filter, whereas the other model, based on spectral closures, generalizes the concepts of eddy viscosity and eddy noise. These models, when used separately or in conjunction, may lead to substantial savings for modeling high Reynolds number flows when checked against high resolution direct numerical simulations (DNS), the examples given here being run on grids of up to 15363 points. © 2010 Springer-Verlag Berlin Heidelberg.
author Mininni, Pablo Daniel
spellingShingle Mininni, Pablo Daniel
Modeling of high Reynolds number flows with solid body rotation or magnetic fields
author_facet Mininni, Pablo Daniel
author_sort Mininni, Pablo Daniel
title Modeling of high Reynolds number flows with solid body rotation or magnetic fields
title_short Modeling of high Reynolds number flows with solid body rotation or magnetic fields
title_full Modeling of high Reynolds number flows with solid body rotation or magnetic fields
title_fullStr Modeling of high Reynolds number flows with solid body rotation or magnetic fields
title_full_unstemmed Modeling of high Reynolds number flows with solid body rotation or magnetic fields
title_sort modeling of high reynolds number flows with solid body rotation or magnetic fields
publishDate 2010
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16122909_v110_n_p287_Pouquet
http://hdl.handle.net/20.500.12110/paper_16122909_v110_n_p287_Pouquet
work_keys_str_mv AT mininnipablodaniel modelingofhighreynoldsnumberflowswithsolidbodyrotationormagneticfields
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