The particle image velocimetry (PIV) was used to characterize the fine structure of flow fields in a pool with an oblique submerged jet,and on this basis, the jet velocity distribution and turbulence characteristics in the wall-jet region were studied systemically.The results showed that in the wall-jet region,the velocity and turbulence intensity distribution in each of the jet flow cross-sections are the self-similarity,which is the same as that of a free jet. In the wall-jet region,the jet velocity decreases linearly along the jet path,whereas the turbulence intensity,the jet half-width increases linearly as the jet travels.The equations of jet velocity and turbulent intensity distributions were proposed,and the formulas to calculate the jet velocity,the turbulence intensity,the jet half-width changing along the jet path were also obtained.
