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- Publisher Website: 10.1007/s12273-019-0588-3
- Scopus: eid_2-s2.0-85075883457
- PMID: 32837689
- WOS: WOS:000520385500014
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Article: Pedestrian-level wind environment near a super-tall building with unconventional configurations in a regular urban area
Title | Pedestrian-level wind environment near a super-tall building with unconventional configurations in a regular urban area |
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Authors | |
Keywords | pedestrian-level wind environment super-tall building building configuration computational fluid dynamics simulation |
Issue Date | 2020 |
Publisher | Tsinghua University Press & Springer-Verlag GmbH. The Journal's web site is located at http://www.springerlink.com/content/1996-3599/ |
Citation | Building Simulation, 2020, v. 13 n. 2, p. 439-456 How to Cite? |
Abstract | Unconventional configurations of tall buildings are noticeably different from their counterpart of traditional building designs but nevertheless, the unconventional configurations have often been adopted for tall buildings without their impact on the pedestrian-level wind environment (PLWE) fully understood. To fill the existing knowledge gap, this study investigates the PLWE near a 400 m super-tall building with various conventional and unconventional configurations in a regular urban area. Computational fluid dynamics (CFD) simulations were conducted for three incident wind directions (θ = 0°, 22.5°, and 45°) to investigate mean wind speed at the pedestrian level using the three-dimensional (3D), steady-state, Reynolds-averaged Navier-Stokes (RANS) technique. The results reveal 1.5- to 2.5-fold increase in maximum wind speed in the urban area after the construction of a super-tall building. The magnitude of the maximum wind speed and areas with high and low wind speeds in the PLWE, however, significantly vary with building design and incident wind direction. The configurations with sharp corners, large plan aspect ratios and frontal areas and the orientation consistently show a strong dependency on incident wind direction except the one with rounded plan shapes. The location of building openings and direction of building inclination are two other factors that modify the PLWE in an urban area. Moreover, the projected width of the super-tall building at a height slightly above the roof level of surrounding buildings is critical for estimating the areas of high and low wind speed at the pedestrian level. |
Persistent Identifier | http://hdl.handle.net/10722/289370 |
ISSN | 2023 Impact Factor: 6.1 2023 SCImago Journal Rankings: 1.326 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Zhang, X | - |
dc.contributor.author | Weerasuriya, AU | - |
dc.contributor.author | Lu, B | - |
dc.contributor.author | Tse, KT | - |
dc.contributor.author | Liu, CH | - |
dc.contributor.author | Tamura, Y | - |
dc.date.accessioned | 2020-10-22T08:11:41Z | - |
dc.date.available | 2020-10-22T08:11:41Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Building Simulation, 2020, v. 13 n. 2, p. 439-456 | - |
dc.identifier.issn | 1996-3599 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289370 | - |
dc.description.abstract | Unconventional configurations of tall buildings are noticeably different from their counterpart of traditional building designs but nevertheless, the unconventional configurations have often been adopted for tall buildings without their impact on the pedestrian-level wind environment (PLWE) fully understood. To fill the existing knowledge gap, this study investigates the PLWE near a 400 m super-tall building with various conventional and unconventional configurations in a regular urban area. Computational fluid dynamics (CFD) simulations were conducted for three incident wind directions (θ = 0°, 22.5°, and 45°) to investigate mean wind speed at the pedestrian level using the three-dimensional (3D), steady-state, Reynolds-averaged Navier-Stokes (RANS) technique. The results reveal 1.5- to 2.5-fold increase in maximum wind speed in the urban area after the construction of a super-tall building. The magnitude of the maximum wind speed and areas with high and low wind speeds in the PLWE, however, significantly vary with building design and incident wind direction. The configurations with sharp corners, large plan aspect ratios and frontal areas and the orientation consistently show a strong dependency on incident wind direction except the one with rounded plan shapes. The location of building openings and direction of building inclination are two other factors that modify the PLWE in an urban area. Moreover, the projected width of the super-tall building at a height slightly above the roof level of surrounding buildings is critical for estimating the areas of high and low wind speed at the pedestrian level. | - |
dc.language | eng | - |
dc.publisher | Tsinghua University Press & Springer-Verlag GmbH. The Journal's web site is located at http://www.springerlink.com/content/1996-3599/ | - |
dc.relation.ispartof | Building Simulation | - |
dc.rights | This is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: https://doi.org/[insert DOI] | - |
dc.subject | pedestrian-level wind environment | - |
dc.subject | super-tall building | - |
dc.subject | building configuration | - |
dc.subject | computational fluid dynamics simulation | - |
dc.title | Pedestrian-level wind environment near a super-tall building with unconventional configurations in a regular urban area | - |
dc.type | Article | - |
dc.identifier.email | Weerasuriya, AU: asiriuw@hku.hk | - |
dc.identifier.email | Liu, CH: chliu@hkucc.hku.hk | - |
dc.identifier.authority | Liu, CH=rp00152 | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1007/s12273-019-0588-3 | - |
dc.identifier.pmid | 32837689 | - |
dc.identifier.pmcid | PMC7282207 | - |
dc.identifier.scopus | eid_2-s2.0-85075883457 | - |
dc.identifier.hkuros | 317541 | - |
dc.identifier.volume | 13 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 439 | - |
dc.identifier.epage | 456 | - |
dc.identifier.isi | WOS:000520385500014 | - |
dc.publisher.place | China | - |
dc.identifier.issnl | 1996-3599 | - |