A Simulation Study of the Outdoor Wind Environment of Low Carbon Buildings in Cold Regions Based on PHOENICS Software
1. Xiongan Construction Management Center, State Grid Hebei Construction Company, Shijiazhuang 050081, China
2. Institute of Intelligent and Green Building, Hebei Academy of Building Research Co., Ltd., Shijiazhuang 050227, China
3. Xiongan Construction Management Center, Hebei Electric Power Engineering Supervision Co., Ltd., Shijiazhuang 050081, China
| Abstract: | Based on PHOENICS software, the suitability of the outdoor wind environment at pedestrian heights of a low-carbon building under different operating conditions was quantitatively analysed using a κ-ε numerical model of low-speed turbulence. Three simulated conditions for the outdoor wind environment of low carbon buildings were determined by typical annual meteorological parameters for Shijiazhuang in cold regions. Combining the information on the full domain flow field obtained from the numerical simulations, the appropriate wind environment parameters were determined. The analysis of the wind environment indicators revealed that the low carbon buildings studied had clear year-round wind flow lines, with no dead zones and no obvious vortex areas. The wind speed at the pedestrian height of the low carbon building under different working conditions was less than 5 m/s (Wind speed in winter, summer and transitional season were 2.95 m/s, 2.54 m/s, and 3.3 m/s respectively), which meets the requirements of human comfort and standard regulations. The surface pressure difference between the different operating conditions (winter, summer and transitional seasons) of the low carbon building is not higher than 5 Pa, which meets the requirements for wind protection in winter in the area and contributes to the comfort level required for ventilation in summer. The study of the building wind environment can effectively identify the gap between the design and the actual use process, providing effective reference and guidance for the actual construction. |
| Keywords: | Cold Regions; Low Carbon Buildings; PHOENICS; Wind Environment; κ-ε Model |
| DOI: | 10.57237/j.se.2023.01.001 |
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Received: 3 December 2022
Accepted: 6 January 2023
Published Online: 12 January 2023
Funding
| 1. | 河北省电力工程监理有限公司科技项目 (SGHEJL00LJJS2200014) |
| 2. | 河北省重点研发计划项目 (21374501D). |
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