Abstract
![CDATA[The pedestrian-level wind environment influenced by twisted wind profiles were evaluated through a series of wind tunnel tests. In the tests, more than 200 Irwin sensors were installed to measure the wind speeds at pedestrian level around five isolated buildings, each with different dimensions. Two twisted wind profiles, with a maximum twist angle of 13° and 22° respectively, were simulated in boundary-layer wind tunnel. A conventional log-law type turbulent a boundary layer profile was employed to repeat the wind tunnel test to act as a control case. Based on the wind speeds measurements, the velocity ratios (VR) were calculated to show the influence of the twisted profiles. By comparing the VR distributions under the influence of the two twisted profiles to the VR distributions in the conventional wind profile, it is observed that (a) the VR distribution in the wake zone is skewed according to the maximum twisted angle, (b) the over-speed area (VR>1.2) decreases and the shelter area (VR<0.8) increases in the pedestrian-level wind field under the influence of the twisted profiles.]]
| Original language | English |
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| Title of host publication | Proceedings of the 17th Australasian Wind Engineering Society Workshop, Wellington, New Zealand, 12-13 February 2015 |
| Publisher | Australasian Wind Engineering Society |
| Pages | 132-135 |
| Number of pages | 4 |
| Publication status | Published - 2015 |
| Event | Australasian Wind Engineering Society. Workshop - Duration: 12 Feb 2015 → … |
Conference
| Conference | Australasian Wind Engineering Society. Workshop |
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| Period | 12/02/15 → … |
Keywords
- wind-pressure
- tall buildings
- aerodynamics