基于PHOENICS软件的寒冷地区低碳建筑室外风环境模拟研究
1. 国网河北省电力有限公司建设公司, 雄安建设管理中心, 河北石家庄 050081
2. 河北省建筑科学研究院有限公司, 智能与绿色建筑研究所, 河北石家庄 050227
3. 河北电力工程监理有限公司, 雄安建设管理中心, 河北石家庄 050081
| 摘 要： | 基于PHOENICS软件，采用κ-ε的低速湍流数值模型，定量分析在不同工况下低碳建筑人行高度处室外风环境的适宜性。通过寒冷地区石家庄典型年的气象参数，确定了低碳建筑室外风环境3种模拟工况。结合数值模拟获得的全域流场信息，确定了适宜的风环境参数。通过对各项风环境指标的分析发现：所研究的低碳建筑全年风场流线较为明显，无气流死区，无明显漩涡区。不同工况下低碳建筑人行高度处的风速小于5m/s（冬季、夏季和过渡季风速分别为2.95m/s、2.54m/s、3.3m/s），满足人体舒适度和标准规定要求。低碳建筑不同工况下（冬季、夏季和过渡季）的表面压力差不高于5Pa，满足该地区冬季防风要求，同时有助于夏季通风符合舒适度要求。对低碳建筑风环境的研究能够有效地发现设计与实际使用过程的差距，为实际工程建设提供有效的参考与指导。 |
| 关 键 词： | 寒冷地区; 低碳建筑; PHOENICS; 风环境; κ-ε模型 |
| DOI： | 10.57237/j.se.2023.01.001 |
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收稿日期: 2022-12-03
接受日期: 2023-01-06
在线出版日期: 2023-01-12
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 |
基金
| 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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