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kong Les Badgirs of the city of Kong GALÉRIE YAZD KASHAN KONG LAFT SIRAF

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.

yazd The Badgirs of the city of Yazd GALÉRIE YAZD KASHAN KONG LAFT SIRAF

The Badgir is a wind tower which often has four conduits. The badgir is a natural cooling system that provides a fresh atmosphere throughout the day thanks to constant natural ventilation. This is how a Badgir works On entering the duct, the air experiences an increase in velocity due to the decrease in the cross-section of the duct. This increase in speed creates a low pressure zone inside the duct. The hot air inside the building, having a relative pressurent higher, is pushed out through the upper openings of the Badgir. The pressure difference between the inside and the outside of the building thus causes a continuous flow of air through the duct, creating natural ventilation. Natural cooling by day, gentle warmth by night ​ The Badgir works by using natural air circulation to cool the house on hot days and to warm it on cool nights. Play Video Share Whole Channel This Video Facebook Twitter Pinterest Tumblr Copy Link Embed Video Link Copied Search video... Now Playing 00:51 Play Video Now Playing 00:44 Play Video Now Playing 00:24 Play Video Now Playing 00:16 Play Video Question-Answer on Badgirs

Construction of the Badgir in 1/2 scale The construction of this example was carried out in collaboration with the students of the Master of the National School of Architecture of Paris-Malaquais (ENSAPM). As part of the project on Bioclimatic, Adaptive and Passive Architectural Envelopes, the Grands Ateliers of the University of Lyon, GAIA, organized a workshop from April 20 to 24, 2015. The objective of this workshop was to combine the history of construction with practical experimentation and the current application of ancient implementation techniques. The students thus contributed to the implementation of pressure and air extraction measurements, as well as to the analysis of the results obtained following the tests carried out with different wind angles (0°, 15°, 30° and 45°).

Roland DEHGHAN KAMARAGI Focusing on vernacular architecture and the integration of natural energies in design, I emphasize the use of local techniques and materials for a sustainable and environmentally respectful design. CV

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Competence CFD (Computational Fluid Dynamics), RDM (Strength of Materials) COURS TD/TP Applications of computational fluid mechanics and the resistance of materials in architecture. ​ Establishment: ENSAPM (National School of Architecture of Paris-Malaquais) ​ Course : CFD (Computational Fluid Dynamics), RDM (Strength of Materials) ​ Course content : Realization of 2D and 3D simulations in fluid mechanics, including the construction of the mesh with Gambit, the resolution of the Navier-Stokes equations and the post-processing with Fluent. Thermal and aerodynamic analysis of the air ducts of a building constructed of earth and wood, including modeling and numerical simulation. Courses in Statics and RDM (Resistance of Materials) taught during the first year of the license. Building Thermal course taught during the second year of the license. Tutorials (TD): creation of conceptual models to experiment with structures, during the second year of the license. Directed work (TD): construction of models of complex structures such as hulls and membranes, during the third year of the license. ​ ​ ARCHITECTURE TEACHER

The Badgirs of the city of Laft GALÉRIE YAZD KASHAN KONG LAFT SIRAF

1– WCST 2015 World Congress on Sustainable Technologies, 14-16 December 2015, London, UK. Title: Experimental and numerical simulation of two Iranian Badgirs in the Persian Gulf, city of Kong and Laft. ​ 2– ICCASCE 2015 International Conference on Civil, Architectural, Structural and Constructional Engineering, 21-23 August 2015 in Dong-A University. Title: Thermal and Dynamic Analyzes of the Siraf city's wind tower; Construction of a half-scale model at University of Lyon (Les Grands Ateliers). 3– WASET 2014, Paris Title: Visualized flow patterns around and inside a two-sided wind catcher with the presence of upstream structures. 4 – Magazine of Concrete Research 2018 Microstructure, Thermal analysis and Chloride penetration by different condition of self-compacting concrete DOI: 10.1680/jmacr.17.00367 ​

yazd The Badgirs of the city of Yazd GALÉRIE YAZD KASHAN KONG LAFT SIRAF