评估在高层住宅综合体内的室外热舒适度的种植策略:一个计算流体动力学模拟研究
Yeongeun Jin1,2, Heeyeun Yoon3,4,5
1Department of Landscape Architecture and Rural Systems Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-Ro, Gwanak-Gu, Seoul, 08826, Republic of Korea.
概括
在开放空间种植更多的树木可以显著提高高层住宅区的热舒适度. 战略树木的放置和数量是温和温度和风速的关键,以改善户外条件.
科学领域:
- 城市规划是城市规划.
- 环境科学环境科学
- 建筑科学 建筑科学
背景情况:
- 高层住宅综合体面临城市热岛效应的挑战.
- 在密集的城市环境中,热舒适是居民福祉的关键因素.
研究的目的:
- 评估不同种植策略对现有高层住宅综合体内的热舒适度的影响.
- 确定最佳的树木数量和位置,以减轻城市热量.
主要方法:
- 使用ENVI-met软件进行数值模拟.
- 六种种植场景的比较:两个位置方案 (开放空间和建筑附近) 和三个树木数量.
- 分析空气温度,平均辐射温度 (MRT),生理等效温度 (PET) 和风速.
主要成果:
- 增加开放空间树密度的三倍降低了空气温度0.87°C,MRT降低了11.00°C,PET降低了4.50°C,风速降低了0.30 m/s.
- 建筑附近种植最小数量的树木显示温度降低较小 (空气:0.07°C,MRT:2.48°C,PET:0.92°C) 和轻微增加风速.
- 树木的数量和位置对于有效的热环境适度至关重要.
结论:
- 战略性种植树木,特别是在开放空间和通风走廊中,在密集的住宅区显著提高了热舒适度.
- 在与建筑物相距的距离上种植平行行列的树木与主要的风相平行,优化了阴影和空气流.
- 研究结果为城市规划师和景观设计师提供了为改善微型气候而设计的实用指南.
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