Abstract
By using database of Direct Numerical Simulation(DNS), we analyze the accuracy of the frozen turbulent hypothesis. Reynolds number based on the friction velocity and the channel half-width is 1000. We compare the Pre-multiplied spectrum(PMS) in frozen turbulence and spatial data. It is found that the frozen turbulent hypothesis is approved in the streamwise, wall-normal, spanwise velocity and pressure fluctuation in the region away from the wall.
