%0 Journal Article %A M. Afshin and A. Sohankar and M. Dehghan Manshadi and M. R. Daneshgar and G. R. Dehghan Kamaragi %D 2014 %J International Journal of Energy and Power Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 96, 2014 %T Visualized Flow Patterns around and inside a Two-Sided Wind-Catcher in the Presence of Upstream Structures %U https://publications.waset.org/pdf/10000026 %V 96 %X In this paper, the influence of upstream structures on the flow patternaround and inside the wind-catcher is experimentally investigated by smoke flow visualization techniques. Wind-catchers are an important part of natural ventilation in residential buildings or public places such as shopping centers, libraries, etc. Wind-catchers might be also used in places of high urban densities; hence their potential to provide natural ventilation is dependent on the presence of upstream structures. In this study, the two-sided wind-catcher model was based on a real wind-catcher observed in the city of Yazd, Iran. The present study focuses on the flow patterns around and inside the isolated two-sided wind-catcher, and on a two-sided wind-catcher in the presence of an upstream structure. The results show that the presence of an upstream structure influences the airflow pattern force and direction. Placing a high upstream structure reverses the airflow direction inside the wind-catcher. %P 1312 - 1317