On the coherence of synthetic turbulence generation methods

Synthetic turbulence generation methods have been extensively used by engineers and scientists in the past ten years in order to impose initial conditions in a wide range of turbulent flow problems. The interest in synthetic methods relies in the fact that reliability of methodologies such as large...

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Autores principales: Castro, Hugo G., Paz, Rodrigo R., Mroginski, Javier L., Wittwer, Adrián R., Stortif, Mario A.
Formato: Objeto de conferencia Resumen
Lenguaje:Inglés
Publicado: 2017
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/96278
https://cimec.org.ar/ojs/index.php/mc/article/view/5319
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id I19-R120-10915-96278
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería
Turbulence synthesis
Computational Fluid Dynamics
Large Eddy Simulation
Coherency
Wind Loads
spellingShingle Ingeniería
Turbulence synthesis
Computational Fluid Dynamics
Large Eddy Simulation
Coherency
Wind Loads
Castro, Hugo G.
Paz, Rodrigo R.
Mroginski, Javier L.
Wittwer, Adrián R.
Stortif, Mario A.
On the coherence of synthetic turbulence generation methods
topic_facet Ingeniería
Turbulence synthesis
Computational Fluid Dynamics
Large Eddy Simulation
Coherency
Wind Loads
description Synthetic turbulence generation methods have been extensively used by engineers and scientists in the past ten years in order to impose initial conditions in a wide range of turbulent flow problems. The interest in synthetic methods relies in the fact that reliability of methodologies such as large eddy simulation (LES) or direct numerical simulation (DNS) strongly depends on how well the developed turbulence is characterized, which generally leads to computationally expensive simulations. In this work the methodology known as “modified discretizing and synthesizing random flow generation” (MDSRFG) jointly with a LES method is analyzed for its use in the study of bluff body aerodynamics. A comparison with other generation techniques, that are closely related by their features and their conceptual origins, is presented with particular emphasis on the correct representation of the coherence of the velocity field. The resulting wind loads on the model, along with the statistical characteristics of the flow, show that the MDSRFG technique allows to represent a field of spatially correlated velocities correctly.
format Objeto de conferencia
Resumen
author Castro, Hugo G.
Paz, Rodrigo R.
Mroginski, Javier L.
Wittwer, Adrián R.
Stortif, Mario A.
author_facet Castro, Hugo G.
Paz, Rodrigo R.
Mroginski, Javier L.
Wittwer, Adrián R.
Stortif, Mario A.
author_sort Castro, Hugo G.
title On the coherence of synthetic turbulence generation methods
title_short On the coherence of synthetic turbulence generation methods
title_full On the coherence of synthetic turbulence generation methods
title_fullStr On the coherence of synthetic turbulence generation methods
title_full_unstemmed On the coherence of synthetic turbulence generation methods
title_sort on the coherence of synthetic turbulence generation methods
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/96278
https://cimec.org.ar/ojs/index.php/mc/article/view/5319
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