average roughness angle u 平均粗糙角u
Finally, the variation law of average roughness Angle of marble specimen and shear creep model parameters is analyzed.
最后分析各大理岩岩样的平均粗糙角与剪切蠕变模型参数的变化规律。
It is also discovered that the axial velocity distribution and velocity-weighted average swirl Angle at the outlet section of axial-flow pump vary with the changing of wall roughness.
研究还发现，水泵出口断面轴向流速分布均匀度和速度加权平均偏流角也随壁面粗糙度改变而改变。
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