An investigation of the structure of ensemble averaged extreme wind events

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This paper examines the extreme gust profiles obtained by conditionally sampling full-scale velocity data obtained in the lower part of the atmospheric boundary layer. It is demonstrated that three different types of behaviour can be observed in the streamwise component of velocity. In all cases the...

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Autores principales: Scarabino, Ana Elena, Sterling, M., Richards, P. J., Baker, C. J., Hoxey, R. P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2007
Materias:
Ingeniería Aeronáutica
gust shapes
conditional sampling
ensemble averaging
downbursts
hairpin vortex structures
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/109603
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-109603
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Aeronáutica
gust shapes
conditional sampling
ensemble averaging
downbursts
hairpin vortex structures
spellingShingle Ingeniería Aeronáutica
gust shapes
conditional sampling
ensemble averaging
downbursts
hairpin vortex structures
Scarabino, Ana Elena
Sterling, M.
Richards, P. J.
Baker, C. J.
Hoxey, R. P.
An investigation of the structure of ensemble averaged extreme wind events
topic_facet Ingeniería Aeronáutica
gust shapes
conditional sampling
ensemble averaging
downbursts
hairpin vortex structures
description This paper examines the extreme gust profiles obtained by conditionally sampling full-scale velocity data obtained in the lower part of the atmospheric boundary layer. It is demonstrated that three different types of behaviour can be observed in the streamwise component of velocity. In all cases the corresponding vertical velocity component illustrates similar behaviour. An idealised horseshoe vortex model and a downburst model are investigated to examine if such structures can explain the behaviour observed. In addition, an empirical model is developed for an isolated gust corresponding to each of the three types of behaviour observed. It is possible that the division of the gust profile into three different types may lead to an improvement in the correlation of extreme gust events with respect to type.
format Articulo
Articulo
author Scarabino, Ana Elena
Sterling, M.
Richards, P. J.
Baker, C. J.
Hoxey, R. P.
author_facet Scarabino, Ana Elena
Sterling, M.
Richards, P. J.
Baker, C. J.
Hoxey, R. P.
author_sort Scarabino, Ana Elena
title An investigation of the structure of ensemble averaged extreme wind events
title_short An investigation of the structure of ensemble averaged extreme wind events
title_full An investigation of the structure of ensemble averaged extreme wind events
title_fullStr An investigation of the structure of ensemble averaged extreme wind events
title_full_unstemmed An investigation of the structure of ensemble averaged extreme wind events
title_sort investigation of the structure of ensemble averaged extreme wind events
publishDate 2007
url http://sedici.unlp.edu.ar/handle/10915/109603
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