Author: Li, Yangluxi; Chen, Lei
Title: Study on the influence of voids on high-rise building on the wind environment Document date: 2019_12_5
ID: 1l21i0fz_29
Snippet: A tall building computed model is built as shown in Fig. 2 . The windward and leeward region longitude is 5H = 400 m and 10H=800 m, individually. The corresponded sizes of the region are W × D × H =1200 m × 290 m × 400 m (Fig. 2 ) and the maximum blockage rate is 1.4% which is lower than the recommended largest blockage ratio (Tominaga et al. 2008b ). The computational grid consists of almost 4,500,000 hexahedral cells. High quality mesh is i.....
Document: A tall building computed model is built as shown in Fig. 2 . The windward and leeward region longitude is 5H = 400 m and 10H=800 m, individually. The corresponded sizes of the region are W × D × H =1200 m × 290 m × 400 m (Fig. 2 ) and the maximum blockage rate is 1.4% which is lower than the recommended largest blockage ratio (Tominaga et al. 2008b ). The computational grid consists of almost 4,500,000 hexahedral cells. High quality mesh is imperative for the precise simulation of natural ventilation under ABL (Atmospheric Boundary Layer) wind flow condition. This study utilized the grid generation of grid extrusion operation method provided by Van Hooff and Blocken (2010). Figure 3 presents that the precise high-quality grids inside of the building and opening.
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