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利用在线式 Ｐ Ｉ Ｖ 系统在低速风洞中对两种非光滑表面：阵列涡发生器表面和波纹壁面的湍流边界层进行了实验测量。观察到了壁面几何形状的改变对非光滑表面湍流边界层拟序结构的产生和发展的影响：阵列涡发生器表面（１０ｍ ／ｓ）湍流边界层内有明显的双剪切带状结构，外剪切带状结构接近边界层的外边界，小尺度的涡在内剪切带状结构的附近产生；波纹壁面（２０ｍ ／ｓ）湍流边界层内涡的尺度比较小。并在相同的壁面几何形状条件下，在不同的流动工况下，研究了非光滑表面对湍流边界层拟序结构的影响。实验结果表明，壁面几何形状的改变对外层的大尺度横向涡的产生和发展有明显的影响；而这种影响效果在不同的流动工况下相差很大。
Two types of non-smooth surfaces were investigated in a low-speed wind tunnel using an on-line P I V system: the turbulent boundary layer on the surface of the array vortex generator and on the corrugated wall. The effect of the change of wall geometry on the formation and development of the ordered structure of the turbulent boundary layer on the non-smooth surface was observed: the obvious double-shear band structure in the turbulent boundary layer of the array vortex generator (10 m / s) The cut-banded structure is close to the outer boundary of the boundary layer, and small-scale vortices are generated in the vicinity of the inner shear banding structure. The vortices in the turbulent boundary layer with a corrugated wall (20 m / s) are relatively small. Under the same wall geometry, the influence of nonsmooth surface on the structure of turbulent boundary layer under different flow conditions was studied. The experimental results show that the change of the wall geometry has a significant effect on the generation and development of large-scale lateral vortices in the outer layer, and the effect varies greatly under different flow conditions.