Simulation of air flow in the Siraf Badgir: A Study on Mechanical Behavior Based on Opening Parameters.
The study of opening parameters through finite element analysis was at the heart of our research. By applying this modeling method, we were able to accurately simulate how different openings influence the mechanical behavior of structures.
The structure was modeled under Rhino, then the mesh obtained was exported to Gambit where the boundary conditions were applied before being finally imported into Fluent, the numerical simulation software used to simulate the behavior of the wind in the ducts.
The model was modeled under Gambit in order to apply the boundary conditions to it.
Simulation of the Badgir domain.
Mesh subtraction.
We carried out measurements by modifying the angle of incidence of the wind at 0°, 15°, 30° and 45°.
The wind tunnel results for the angle at 0 degrees.
The wind tunnel results for the 30 degree angle.
Studying this image, we can see that when the angle is 0º, the extraction of air occurs almost uniformly in ducts B and D. In contrast, duct C, which is located in front of the air inlet A is in maximum depression.
At an angle of 30°, we observe the presence of additional mechanisms. Part of the air is distributed in the room through the Badgir ventilation system, while the rest is directed to ducts B and C to be exhausted to the outside.
The 32° angle remains the preferred angle for this experiment. In fact, when duct A is exposed to the prevailing wind at an angle of 32°, the other three ducts immediately go into extraction mode to efficiently evacuate the air.