Gunaydin, Tugba Inan2024-11-072024-11-0720212147-9380https://doi.org/10.15320/ICONARP.2021.175https://search.trdizin.gov.tr/tr/yayin/detay/503254https://hdl.handle.net/11480/14156Purpose This study researches a numerical analysis of pressure distributions of wind on irregular buildings over wind angles of 0 degrees and 180 degrees with different projection ratios(PR). Wind is an important design parameter that should be considered at the initial part of the design phase in terms of energy potential. For this reason, wind effects in building design is extensively analyzed in this study. The study aims to analyze the effect of irregular building form, projection ratios, the re-entrant corner distances and wind incidence angles on the wind flow and on pressure distributions of wind at all surfaces. Design/Methodology/Approach Two L-shaped and T-shaped building models which have the identical building area and building height but have different projection ratios were analyzed by Computational Fluid Dynamics (CFD) of ANSYS. In line with the aim, pressure distributions of wind on and around various irregular buildings are analyzed for the same height level. Model dimensions were reduced to 1/100 scale to save computing time. Findings From the study, it has been noticed that the plan shape, projection ratios, distances from the re -entrant corner, considerably influence the wind behavior of buildings. It was noticed that when projection ratio decreased to half, the negative pressure values two times greater in L and T models. When L and T models with the same building area are compared, the highest negative pressure was seen in the L model with the highest projection ratio PR (0.80). In all T models, the highest negative pressure coefficients were noticed on D and F surfaces for both wind angles. In all L models, the highest negative pressure coefficients were found on F surface for both wind angles. Originality/Value Studies on the effects of wind on the building are generally seen as an engineering problem. There are limited number of studies on this subject in architecture. However, this is an issue that needs to be investigated, which also concerns architecture. There are many studies in the literature on the wind behavior of irregular buildings. However, projections in plan and distances from the re-entrant corner's effect on pressure coefficients were not be studied comprehensively. The obtained results from the CFD analysis will provide extensive information related to wind effects on buildings. this resource will create awareness about wind for architects and architecture students and can be used as a resource in the design phases.eninfo:eu-repo/semantics/openAccessBuilding formprojectionswind pressure coefficientscomputational fluid dynamicsArticle9264667910.15320/ICONARP.2021.175503254WOS:000744180300007N/A