Analysis of Complex Proper Orthogonal Decomposition for Fluctuating Wind Pressure Field Acting on the Surface of Oscillating 3D Square Prism

Part1 Mode of POD Analysis and those Properties

Abstract

This paper describes an analysis of proper orthogonal decomposition, which is refereed as POD, for wind pressure field acting on a square prism in three-dimensional flow under the aerodynamic vibration. In the simulation of aerodynamic vibration, the Improved hybrid aerodynamic vibration technique is applied. From the result of POD analysis, the positive symmetry mode and reverse-symmetry mode can be shown as a typical mode of POD.