APPLICATION OF COMPUTATIONAL FLUID DYNAMICS TECHNIQUES FOR STUDYING WIND FORCES ON HIP ROOF BUILDINGS

Abstract

Abstract: Most residential, commercial, and industrial structures worldwide are low-rise and susceptible to windstorms. Wind lots on low-rise structures are understudied. Unfortunately, hurricanes and tornadoes remind us of this carelessness. Post-disaster assessments show that roof failures and coverings caused most of the initial damage. Multiple building evaluations have shown increased suction pressures around roof corners, leading edges and ridges. Hip roofs, also known as hipped roofs, have all sides slope downhill to the walls, usually mildly. Thus, it lacks gables and other roof verticals. Square hip roofs are pyramidal. Hip roofs on rectangular homes feature 2 triangular and 2 trapezoidal sides. They're symmetrical centerline-wise due to their pitch or slope. They give structures a compact, attractive appearance. Hip roofs have a standard fascia, so gutters may be installed around them. Dormer-slanted hip roofs are common. This research is on using computational fluid dynamics to examine hip roof wind forces. This paper details CFD simulations of low-rise hip roof buildings. For CFD study, wind tunnel simulated data was used for inflow boundary conditions, boundary conditions, near to wall treatment, etc.