防风设计对寒浪期间热地区的微气候的影响:数值调查
Mohamed E Abdalazeem1,2, Hamdy Hassan3,4, Takashi Asawa5
1Department of Environmental Engineering, Egypt-Japan University of Science and Technology E-JUST, New Borg El-Arab City, Alexandria, 21934, Egypt.
International journal of biometeorology
|May 5, 2024
概括
防风板通过优化树木特征和空间布局,有效地减轻炎热干旱气候中的冬季寒冷压力. 这一策略还减少了夏季的极端高温,为全年气候适应带来了好处.
科学领域:
- 环境科学 环境科学
- 气候适应 气候适应
- 城市规划 城市规划
背景情况:
- 气候变化需要在炎热的气候中适应极端天气事件的适应策略.
- 冬季的寒冷浪潮在炎热的草原干旱地区构成重大风险,但尚未得到充分研究.
- 现有的研究往往忽视了气候适应措施跨季节的双重好处.
研究的目的:
- 在炎热的草原干旱气候中调查防风参数,以减轻冬季寒冷压力.
- 评估树木特征和空间配置对微气候调节的影响.
- 在寒冷的冬季和炎热的夏季条件下评估优化防风器的有效性.
主要方法:
- 开发和验证一个住宅校园的微气候模型.
- 模拟了32个破风场景,树木分布,叶面积密度 (LAD),行号,间距和形状各不相同.
- 在冬季和夏季条件下的预测平均投票 (PMV),风速和空气温度 (AT) 的评估.
主要成果:
- 双排高高的LAD,距离较近的中高树木被证明是减轻寒冷压力的最有效方法.
- 避风器在早上降低了高达19.31%的寒冷压力,并在晚上降低了18.06%.
- 夜间空气温度 (AT) 和风速分别下降了0.79°C和2.56米/秒.
- 在夏季,非常热的预测平均投票 (PMV) 区域在中午和中午下午分别减少了21.79%和19.5%.
结论:
- 防风设计对于在炎热的草原干旱地区有效减轻寒冷压力至关重要.
- 优化的防风板在冬季提供了显著的微气候优势,减少了对寒冷的暴露.
- 这些结构还在夏季提供有价值的冷却效果,增强全年热舒适度和气候适应性.
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