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Impact of roof shape on air pressure, wind flow and indoor temperature of residential buildings

The aim of this study is to investigate different roof shapes with respect to air flow and indoor temperature in order to find efficient roof shapes for residential buildings in Tehran, Iran. First, an analytical model is defined and then various roof types are modelled. Theoretical modelling is presented to assess the accuracy of the measurement procedures and the uncertainty of experimental mode

Natural ventilation performance of ancient wind catchers, an experimental and analytical study - case studies: one-sided, two-sided and four-sided wind catchers

An experimental and analytical method has been applied to evaluate air flow pattern in three main kinds of Iranian traditional wind catchers. Results indicate that ARDAKANI wind catcher with one opening is not an efficient device, and airflow average rate in its shaft is negative. It means that one-side wind catcher has a high rate air extract specially in summer and spring which air supply is dem