应用激光测速技术和氢气泡流动显示技术对沟槽面湍流边界层特性及近壁区拟序结构特征进行了精细的测量和观察实验结果表明：与光滑面湍流边界层相比，沟槽面湍流边界层的黏性底层厚度、过渡层厚度及流速分布对数公式中的积分常数Ｃ均有所增大，说明采用的沟槽面具有减阻特性．此外，无量纲低速带条间距明显减小，最多减小２０％；说明无量纲低速带条平均间距的缩短与湍流减阻密切联系 The characteristics of turbulent boundary layer on the grooved surface and the structural features near the wall were measured and measured by laser velocimetry and hydrogen bubble flow display. The experimental results show that compared with smooth surface turbulent boundary layer, The boundary layer of the viscosity of the underlying thickness, the thickness of the transition layer and the flow rate distribution logarithm of the integral constant C have increased, indicating the use of the groove surface with drag reduction characteristics. In addition, the dimensionless low-speed strip spacing was significantly reduced, up to 20% reduction; the shortening of the mean spacing of the non-dimensional low-velocity strip is closely linked with turbulence drag reduction