The Effects of Central Courtyard’s Geometric Form of the Hot and Dry Settlements in Kashan on the Airflow Passing by the Walls and Floor: Case Study-Kashan City

One way to achieve high energy efficiency in buildings and a reliable architectural system is use the experiences of local architecture. In this connection, central courtyard an element that was used past create comfort hot dry climates Kashan, Iran. A large part literature has focused on space investigated factors such as height, length, presence water courtyard, which are directly related studied space. This study addresses dynamic behavior air under effects its geometric form airflow passing by walls floor ventilate space, aiming increase efficiency. The Energy Plus analyzes component, Open Studio software research uses descriptive-analytical method investigate findings. It concluded circulation best met loop inside it ultimately revealed priority per oval with rectangular being next. circular, hexagonal trapezoidal shapes yard have been shown understand better movement wind adjacent bottom (south-to-north) flow upper layer (north-to-south).