STUDY OF INTERFERENCE EFFECT ON TALL HEXAGONAL TWO BUILDING AND THREE BUILDINGS CONFIGURATION AT DIFFERENT WIND INCIDENCE ANGLES

Abstract

Hexagonal tall buildings are gaining traction due to their structural efficiency and aesthetic appeal. The interference effects are examined by comparing the aerodynamic forces acting on the buildings in isolation versus in close proximity. Additionally, the impact of varying wind incidence angles on these cases is studied to understand the aerodynamic behaviour of hexagonal tall buildings. In this research the analysis is done using ANSYS CFX to determine the wind pressure at different heights and faces of the building. Further pressure coefficients(Cpe) , interference factors(I.F) and interference difference(I.D) is found out at each face of the single building , 2 building and 3 building cluster at different wind incidence angles starting from 0 degrees to 90 degrees with an interval of 15 degrees. In case of 2 building and 3 building cluster , pressure coefficients(Cpe) is calculated on each face and is compared with the pressure coefficients(Cpe) of each face of a single hexagonal building. The value of pressure coefficients versus the wind incidence angle for each face of the single building,2 buildings and 3 buildings are shown in the form of a bar graph. A schematic graph of Interference factor(I.F) and interference difference(I.D) versus the wind incidence angles will also shown in the respective graphs.