Saadatjoo Paria, Badamchizadeh Parinaz, Mahdavinejad Mohammadjavad
Department of Architecture, Faculty of Civil Engineering, University of Tabriz, Tabriz, Iran.
Department of Architecture, Faculty of Art and Architecture, Tarbiat Modares University, Tehran, Iran.
Sustain Cities Soc. 2023 Oct;97:104726. doi: 10.1016/j.scs.2023.104726. Epub 2023 Jun 21.
COVID-19 has laid a context for holistic research and practical approaches towards health issues in buildings. This study focuses on one particular residential building type, which is a combination of a modern apartment building with private double-oriented terraces, and a traditional courtyard building. This principle improves several aspects of healthy buildings and contributes to address indoor-outdoor interactions, daylighting, and the use of natural ventilation. The purpose of this study is to determine the factors underlying a particular type of semi-outdoor space within building forms and to explain their microclimatic behavior in buildings. One solid model and twelve porous apartment buildings with different numbers of porous sides, and terrace widths are evaluated using computational fluid dynamics. The k-ε turbulence model is adapted to simulate airflow in and around a four-story building. CFD simulations were validated against the wind-tunnel measurements. Investigations indicated that increasing the number of porous sides reduces the internal mean and maximum ages of air by -15.75 and -36.84%, which means improved ventilation performance. However, it leaves a negative trace on ventilation of the semi-outdoor spaces. Meanwhile, increasing the width of the terraces enhances the ventilation performance by reducing the mean age of air in units, courtyards, and terraces by -20%, -20%, and -9%, respectively.
新冠疫情为针对建筑健康问题的全面研究和实际方法奠定了背景。本研究聚焦于一种特定的住宅建筑类型，它是现代公寓楼与私人双向露台以及传统庭院建筑的结合体。这一原理改善了健康建筑的多个方面，并有助于解决室内外互动、采光以及自然通风的利用问题。本研究的目的是确定建筑形式内特定类型半室外空间的潜在因素，并解释其在建筑中的微气候行为。使用计算流体动力学评估了一个实体模型和十二座具有不同数量多孔面及露台宽度的多孔公寓楼。采用k-ε湍流模型来模拟一座四层建筑及其周边的气流。通过风洞测量对计算流体动力学模拟进行了验证。调查表明，增加多孔面的数量可使室内空气的平均年龄和最大年龄分别降低15.75%和36.84%，这意味着通风性能得到改善。然而，这对半室外空间的通风产生了负面影响。与此同时，增加露台宽度可分别将单元、庭院和露台内空气的平均年龄降低20%、20%和9%，从而提高通风性能。
