There is a velocity difference across the radius of the pipe.
这条管道半径两端间存在一速度差。
The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period.
速度差各分量的变化具有很明显的周期性且与卫星轨道的运行周期相吻合。
Besides, as the diameter increases, the velocity difference between pipeline axis and wall will become bigger accordingly.
并且随着管径的增大，管道断面上管轴中心流速和管壁流速的差值将随之增大。
应用推荐