抄録
Three-components of velocity and a wall shear stress have been measured using a non-orthogonal triple-sensors probe and a micro flow sensor in unsteady turbulent pipe flows with stepwise time variations. Its response behavior of turbulence distributions has been investigated experimentally. It is found that the response of turbulence characteristics near the pipe center is fairly delayed to the stepwise variation of flow rate because the centerward transport of turbulence becomes slow due to the interaction of triple correlations.
