Numerical simulation of wind pressures on low-rise building with gable roof

In combination with research on the wind load and wind-resistance behavior of low-rise buildings,the wind flow around, and the wind-induced pressures on, a low-rise building with gable roof were predicted using technique of numerical simulation based on the Reynolds-averaged equations,in which the standard k-e turbulence model was used. In the simulation,the computational domain was divided using adaptability tetrahedral elements. The finite-volume method with non-staggered cell-vertex scheme was used for numerical discretization of the governing differential equations;and the discretized nonlinear equations were solved using the semi-implicit method for pressure-linked equations (SIMPLE algorithm)By comparison with wind tunnel test results, it was confirmed that the numerical simulation fairly well predicted the wind pressure distribution on the building;and that the computed pressure coefficients agreed well with the wind tunnel test data.