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Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses

Adequate wind flow in residential neighbourhood is important for providing a comfortable and healthy environment. It can significantly affect the diffusion of heat; lowering the temperature around it, and the dispersion of traffic-related pollutants between urban surfaces and the atmosphere. In this...

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Main Authors: Razali, M. N. H. A., Salim, S. A. Z. S., Ali, M. S. M., Ahmad, N. H.
Format: Article
Published: UiTM Press 2017
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/76485/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041035772&partnerID=40&md5=a08357fae7076f629d53871a17480f7a
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spelling my.utm.764852018-04-30T13:27:45Z http://eprints.utm.my/id/eprint/76485/ Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses Razali, M. N. H. A. Salim, S. A. Z. S. Ali, M. S. M. Ahmad, N. H. T Technology (General) Adequate wind flow in residential neighbourhood is important for providing a comfortable and healthy environment. It can significantly affect the diffusion of heat; lowering the temperature around it, and the dispersion of traffic-related pollutants between urban surfaces and the atmosphere. In this study, large-eddy simulation, using the Smagorinsky subgrid-scale model, was used to investigate the effect that modifications to a terraced house canyon would have on its wind flow characteristics. The configuration of an idealized terraced house canyon includes a height-to-width ratio h/w = 1/3, and secondary-roughness elements were installed in a staggered, square layout, at 0.5h from the ground. Secondary-roughness elements are treated as modifications to a terraced house building (large-roughness elements). The interaction between an idealized terraced house canyon and secondary-roughness elements has been studied by estimating wind velocity profiles within the terraced house canyon. The velocity profiles have been compared with previous studies to validate the accuracy of the simulation. This study reveals that the modification of the canyon can also affect the wind flow regimes, which might alter the micro climate in the surrounding area, owing to smaller canyon width and sheltering effect from the new obstacle. UiTM Press 2017 Article PeerReviewed Razali, M. N. H. A. and Salim, S. A. Z. S. and Ali, M. S. M. and Ahmad, N. H. (2017) Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses. Journal of Mechanical Engineering, SI 2 (2). pp. 243-253. ISSN 1823-5514 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041035772&partnerID=40&md5=a08357fae7076f629d53871a17480f7a
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic T Technology (General)
spellingShingle T Technology (General)
Razali, M. N. H. A.
Salim, S. A. Z. S.
Ali, M. S. M.
Ahmad, N. H.
Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
description Adequate wind flow in residential neighbourhood is important for providing a comfortable and healthy environment. It can significantly affect the diffusion of heat; lowering the temperature around it, and the dispersion of traffic-related pollutants between urban surfaces and the atmosphere. In this study, large-eddy simulation, using the Smagorinsky subgrid-scale model, was used to investigate the effect that modifications to a terraced house canyon would have on its wind flow characteristics. The configuration of an idealized terraced house canyon includes a height-to-width ratio h/w = 1/3, and secondary-roughness elements were installed in a staggered, square layout, at 0.5h from the ground. Secondary-roughness elements are treated as modifications to a terraced house building (large-roughness elements). The interaction between an idealized terraced house canyon and secondary-roughness elements has been studied by estimating wind velocity profiles within the terraced house canyon. The velocity profiles have been compared with previous studies to validate the accuracy of the simulation. This study reveals that the modification of the canyon can also affect the wind flow regimes, which might alter the micro climate in the surrounding area, owing to smaller canyon width and sheltering effect from the new obstacle.
format Article
author Razali, M. N. H. A.
Salim, S. A. Z. S.
Ali, M. S. M.
Ahmad, N. H.
author_facet Razali, M. N. H. A.
Salim, S. A. Z. S.
Ali, M. S. M.
Ahmad, N. H.
author_sort Razali, M. N. H. A.
title Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
title_short Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
title_full Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
title_fullStr Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
title_full_unstemmed Large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
title_sort large-eddy simulation of wind flow within a canyon between modified idealized terraced houses
publisher UiTM Press
publishDate 2017
url http://eprints.utm.my/id/eprint/76485/
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85041035772&partnerID=40&md5=a08357fae7076f629d53871a17480f7a
_version_ 1643657323163418624
score 13.211869

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