Buffeted by molecules of the fluid, the rotor turns clockwise as often as it does anti-clockwise.
受到液体分子的冲击，转子有时顺时针方向转动，有时也经常可以逆时针方向转动。
2
The wake flow of stator vanes and the unsteady flow in the passage of rotor blades were solved by using oscillating fluid mechanics theory and parametric polynomial method.
Research shows that, it is suitable for rotor dynamics, dynamic analysis of helicopter rotor blades fuselage systems and piping systems contained flow fluid.