Proper orthogonal decomposition study of approach wind-building pressure correlation

摘要

The wind-induced pressure acting on buildings and structures is greatly influenced by the approaching wind. A detailed analysis of correlation between wind and building pressure is difficult using classical statistical methods. Proper orthogonal decomposition (POD) overcomes this difficulty by allowing us to consider separately the principal coordinates and the associated eigenvectors, characterizing the dominant spatio-temporal structures of the analyzed field. In this paper, the fluctuating wind pressure acting on the building models is analyzed using POD and the correlations between the decomposed pressures and the approaching wind are examined.