A numerical implementation of the advection equation is proposed to increase the temporal resolution of PIV time series. The method is based on the principle that velocity fluctuations are transported passively, similar to Taylors hypothesis of frozen turbulence. In the present work, the advection model is extended to unsteady threedimensional flows. The main objective of the method is that of lowering the requirement on the PIV repetition rate from the Eulerian frequency toward the Lagrangian one. 自適應(yīng)粒子成像測(cè)速場(chǎng)儀（PIV） 德國(guó)LaVision PIV/PLIF粒子成像測(cè)速場(chǎng)儀 時(shí)間分辨粒子成像測(cè)速系統(tǒng)(TR-PIV) 體視層析粒子成像測(cè)速系統(tǒng)(Tomo-PIV)