The velocity amplitude distributions of the oscillatory flow outside the boundary layer are measured at seven cross-sections along the horizontal, the vertical, and the bent sections respectively.

对于水平直管段上底面及下底面各三个截面，测量了边界层内振荡流速的振幅分布及相位分布。

youdao

The velocity amplitude distributions of the oscillatory flow outside the boundary layer are measured at seven cross-sections along the horizontal, the vertical, and the bent sections respectively.

对于水平直管段上底面及下底面各三个截面，测量了边界层内振荡流速的振幅分布及相位分布。

youdao