the natural ventilation is an easy way to exchange the indoor polluted warm air with outdoor fresh air. the wind power injects outdoor fresh air into the building. a good indoor air current and subsequently a proper exhaust depend on the openings’ conditions and their situations. a serious architectural question is under what conditions of the openings the wind-cross ventilation can be effectiv...

Designing for wind driven cross ventilation is challenging due to the dynamic characteristics of wind. While numerous studies have used wind tunnels and computational fluid dynamics to study cross ventilation, few have utilized a full scale experimental approach. Thus, this paper provides measurements of wind properties, façade pressures, airflow rates through small window openings, and tracer ...

Natural ventilation can contribute to a sustainable and healthy built environment, but the flow be highly dependent on configuration outdoor turbulent wind conditions. As result, quantifying natural rates challenging task. Wind tunnel experiments offer one approach for studying ventilation, measurements are often restricted few points or planes in building, data have limitations due intrusive n...

As most existing office buildings in China lack fresh air systems for ventilation, natural ventilation with windows remains the main means of improving indoor quality and adjusting thermal comfort. However, knowledge characteristics various window-opening forms actual is limited current methods evaluating performance a comprehensive consideration rate In this study, different were systematicall...

Natural ventilation is gaining popularity in response to an increasing demand for a sustainable and healthy built environment, but the design of naturally ventilated building can be challenging due inherent variability operating conditions that determine natural flow. Large-eddy simulations (LES) have significant potential as analysis method flow, since they provide accurate prediction turbulen...

Natural ventilation nowadays has been paid great concerns due to its zero carbon emission and good performance on the human health. In engineering applications, cross driven by winds frequently restricted in building clustered cities. Instead, single-sided natural becomes an alternative mode wind strategies for urban buildings. This research reviewed former published researches terms of classif...

Natural ventilation through windows and other openings in the building envelope is still the most common way to ensure the necessary fresh air supply in buildings. To date, there are few validated models for the calculation of ventilation rates through large openings. In particular, there is a lack of information about natural cross-ventilation. On the basis of an empirical study a mathematical...

Natural ventilation can be categorized into single-sided and cross-ventilation. Based on the air flow mechanism of a wind-driven natural ventilation, effective rates in buildings are different from through openings. The mixing coefficient or efficiency is defined by ratio these rates, indicating ventilating ability similar to effect penetration depth fresh air. This paper provides detailed anal...