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Computational of the wind velocity effect on infiltration rates in an individual building using multi-zone airflow model
International Journal of Ventilation ( IF 1.5 ) Pub Date : 2018-02-09 , DOI: 10.1080/14733315.2018.1431359
Lounes Koufi 1, 2 , Zohir Younsi 1, 2 , Hassane Naji 2, 3
Affiliation  

ABSTRACT This paper presents and discusses numerical simulation of the wind velocity's effect on infiltration rates in an individual building using multi-zone modelling. The governing equations are expressed in terms of unknown pressures at points where flow paths connect. Their implementation was achieved using an advanced numerical model, which was developed via the MATLAB environment. Such a numerical approach has been validated through available results. A good agreement has been observed between available data and our study's results. Moreover, the model implemented allows to determine the reference pressure in each zone to compute the air infiltration rate by each connection. To perform this, a large range of input data is needed. These include leakage characteristics of airflow elements, wind pressure coefficients, and ventilation system characteristics. To sum up, it is found that the wind velocity increase produces a strongly variation on computed infiltration rates.

中文翻译:

使用多区域气流模型计算单个建筑物中风速对渗透率的影响

摘要 本文介绍并讨论了使用多区域模型对单个建筑物中风速对渗透率影响的数值模拟。控制方程用流动路径连接点处的未知压力表示。它们的实现是使用先进的数值模型实现的,该模型是通过 MATLAB 环境开发的。这种数值方法已通过可用结果得到验证。在可用数据和我们的研究结果之间观察到了很好的一致性。此外,实施的模型允许确定每个区域的参考压力,以计算每个连接的空气渗透率。为此,需要大量的输入数据。这些包括气流元件的泄漏特性、风压系数、和通风系统的特点。总而言之,发现风速的增加对计算的渗透率产生强烈的变化。
更新日期:2018-02-09
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