Wall pressure fluctuation is one of the source terms which result in thevibration of hydraulic structures. To consider both the space and time correlation of the pressurefield. the method of proper orthogonal decompos...Wall pressure fluctuation is one of the source terms which result in thevibration of hydraulic structures. To consider both the space and time correlation of the pressurefield. the method of proper orthogonal decomposition and low-dimensional approximation were usedhere to describe the pressure signals of the turbulent boundary layer, the apron of the stillingpond and the vertically impinging jet.展开更多
文摘Wall pressure fluctuation is one of the source terms which result in thevibration of hydraulic structures. To consider both the space and time correlation of the pressurefield. the method of proper orthogonal decomposition and low-dimensional approximation were usedhere to describe the pressure signals of the turbulent boundary layer, the apron of the stillingpond and the vertically impinging jet.