Numerical simulation of the effects of building dimensional variation on wind pressure distribution
Knowledge of wind effects is of great significance in structural, environmental, and architectural fields, where excessive relevance among wind pressure, building load, and natural ventilation has been formerly confirmed. Within the scope of high-rise buildings, functions of their layout, separation...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
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Taylor & Francis Group
2017-01-01
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Series: | Engineering Applications of Computational Fluid Mechanics |
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Online Access: | http://dx.doi.org/10.1080/19942060.2017.1281845 |
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author | Ben Mou Bao-Jie He Dong-Xue Zhao Kwok-wing Chau |
author_facet | Ben Mou Bao-Jie He Dong-Xue Zhao Kwok-wing Chau |
author_sort | Ben Mou |
collection | DOAJ |
description | Knowledge of wind effects is of great significance in structural, environmental, and architectural fields, where excessive relevance among wind pressure, building load, and natural ventilation has been formerly confirmed. Within the scope of high-rise buildings, functions of their layout, separation and height in altering wind pressure have been inquired on purpose, while a few investigations in relation to impacts of plane dimensions have been explored. This study consequently intends to ascertain wind pressure distributions on and around various squared-shaped tall buildings by the application of Computational Fluid Dynamics techniques. To start with, models established by the Common Advisory Aeronautical Research Council (CAARC) were simulated, for the purpose of correctness comparison, and reliability verification. Hereafter, wind pressure distributing on buildings was predicted under two scenarios, namely height-width (HW) and height-thickness (HT). Results evidenced that both HW ratio and HT ratio exerted great influence on wind characteristics of buildings. Positive pressure on building surface generally varied greatly, where a narrower windward tended to suffer higher wind pressures, while a larger one was corresponding to severer negative wind effects. The thickness played little influence on altering positive wind pressure. Prominently, pressure distributed on leeward surfaces showed great differences, whereas wind effects on leeward and side surface were strengthened. Likewise, both positive and negative effects around buildings were magnified by larger widths, while negative effects became feeble along the increasing building thickness. |
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id | doaj.art-eddf887c3beb4885a24d4d5084f8fd6b |
institution | Directory Open Access Journal |
issn | 1994-2060 1997-003X |
language | English |
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publishDate | 2017-01-01 |
publisher | Taylor & Francis Group |
record_format | Article |
series | Engineering Applications of Computational Fluid Mechanics |
spelling | doaj.art-eddf887c3beb4885a24d4d5084f8fd6b2022-12-22T02:58:56ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2017-01-0111129330910.1080/19942060.2017.12818451281845Numerical simulation of the effects of building dimensional variation on wind pressure distributionBen Mou0Bao-Jie He1Dong-Xue Zhao2Kwok-wing Chau3Qingdao University of TechnologyThe University of New South WalesUniversity of Shanghai for Science and TechnologyHong Kong Polytechnic UniversityKnowledge of wind effects is of great significance in structural, environmental, and architectural fields, where excessive relevance among wind pressure, building load, and natural ventilation has been formerly confirmed. Within the scope of high-rise buildings, functions of their layout, separation and height in altering wind pressure have been inquired on purpose, while a few investigations in relation to impacts of plane dimensions have been explored. This study consequently intends to ascertain wind pressure distributions on and around various squared-shaped tall buildings by the application of Computational Fluid Dynamics techniques. To start with, models established by the Common Advisory Aeronautical Research Council (CAARC) were simulated, for the purpose of correctness comparison, and reliability verification. Hereafter, wind pressure distributing on buildings was predicted under two scenarios, namely height-width (HW) and height-thickness (HT). Results evidenced that both HW ratio and HT ratio exerted great influence on wind characteristics of buildings. Positive pressure on building surface generally varied greatly, where a narrower windward tended to suffer higher wind pressures, while a larger one was corresponding to severer negative wind effects. The thickness played little influence on altering positive wind pressure. Prominently, pressure distributed on leeward surfaces showed great differences, whereas wind effects on leeward and side surface were strengthened. Likewise, both positive and negative effects around buildings were magnified by larger widths, while negative effects became feeble along the increasing building thickness.http://dx.doi.org/10.1080/19942060.2017.1281845Square-shaped tall buildingsmean wind pressurebuilding dimensionscomputational fluid dynamicsheight-width scenarioheight-thickness scenario |
spellingShingle | Ben Mou Bao-Jie He Dong-Xue Zhao Kwok-wing Chau Numerical simulation of the effects of building dimensional variation on wind pressure distribution Engineering Applications of Computational Fluid Mechanics Square-shaped tall buildings mean wind pressure building dimensions computational fluid dynamics height-width scenario height-thickness scenario |
title | Numerical simulation of the effects of building dimensional variation on wind pressure distribution |
title_full | Numerical simulation of the effects of building dimensional variation on wind pressure distribution |
title_fullStr | Numerical simulation of the effects of building dimensional variation on wind pressure distribution |
title_full_unstemmed | Numerical simulation of the effects of building dimensional variation on wind pressure distribution |
title_short | Numerical simulation of the effects of building dimensional variation on wind pressure distribution |
title_sort | numerical simulation of the effects of building dimensional variation on wind pressure distribution |
topic | Square-shaped tall buildings mean wind pressure building dimensions computational fluid dynamics height-width scenario height-thickness scenario |
url | http://dx.doi.org/10.1080/19942060.2017.1281845 |
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