Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis

On the night of January 29, 2016 a thunderstorm event was registered in Porto Alegre, Brazil. The winds caused damage throughout the majority of the city, leaving more than 220,000 houses without electricity and thousands without water. An approaching cold front encountering moist warm air led to...

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Detalles Bibliográficos
Autores principales: Loredo Souza, Acir Mércio, Lima, Elías G., Vallis, Matthew B., Rocha, Marcelo M., Wittwer, Adrián Roberto, Oliveira, Mario G. Klaus
Formato: Documento de conferencia
Lenguaje:Inglés
Publicado: Northeastern University 2022
Materias:
Downburst
Macroburst
TS Winds
Wind Tunnel
Wind
Full-scale damage
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/48040
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-48040
record_format dspace
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Downburst
Macroburst
TS Winds
Wind Tunnel
Wind
Full-scale damage
spellingShingle Downburst
Macroburst
TS Winds
Wind Tunnel
Wind
Full-scale damage
Loredo Souza, Acir Mércio
Lima, Elías G.
Vallis, Matthew B.
Rocha, Marcelo M.
Wittwer, Adrián Roberto
Oliveira, Mario G. Klaus
Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
topic_facet Downburst
Macroburst
TS Winds
Wind Tunnel
Wind
Full-scale damage
description On the night of January 29, 2016 a thunderstorm event was registered in Porto Alegre, Brazil. The winds caused damage throughout the majority of the city, leaving more than 220,000 houses without electricity and thousands without water. An approaching cold front encountering moist warm air led to the formation of a supercell over the whole metropolitan area. The event was defined as a macroburst by meteorologists due to its characteristics and destruction patterns, but only three anemometers recorded velocity readings of the event. This meteorological event offered an opportunity to check and compare, in full-scale and under a downburst flow, the behaviour of buildings previously tested in a conventional Boundary Layer Wind Tunnel. Six 80m tall buildings and two football stadiums were analysed. The buildings presented damage to the façade cladding, while the stadiums remained undamaged. In three of the most affected building the pressure distribution diagrams on the building façades, obtained from the wind tunnel study, show a direct correspondence with the damaged zones of the full-scale buildings analysed. Although the flow characteristics of downburst winds and conventional boundary layer simulations of synoptic winds may be different, it may be concluded from the full-scale survey that the use of current conventional wind tunnel simulations is still a valuable tool in the prediction of wind loads of most meteorological events that generate extreme winds in Brazil.
format Documento de conferencia
author Loredo Souza, Acir Mércio
Lima, Elías G.
Vallis, Matthew B.
Rocha, Marcelo M.
Wittwer, Adrián Roberto
Oliveira, Mario G. Klaus
author_facet Loredo Souza, Acir Mércio
Lima, Elías G.
Vallis, Matthew B.
Rocha, Marcelo M.
Wittwer, Adrián Roberto
Oliveira, Mario G. Klaus
author_sort Loredo Souza, Acir Mércio
title Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
title_short Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
title_full Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
title_fullStr Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
title_full_unstemmed Full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
title_sort full-scale downburst damage versus boundary layer wind tunnel pressures : a survey analysis
publisher Northeastern University
publishDate 2022
url http://repositorio.unne.edu.ar/handle/123456789/48040
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