随流速的进一步加大，此时淤泥所受剪切力进一步增大，水流紊动作用逐渐加强

With the further increase of the flow velocity, the shearing force on the silt at this time further increases, and the turbulent action of the water flow is gradually strengthened. Some small pieces of silt in the tank are washed up and suspended in the form of loose particles on the mud surface. At this time, the water body is In a turbid state, the water velocity corresponding to this stage is between 25 and 50 cm/s.

With the further increase of flow rate, at this time the shear force of the silt is further increased, the water flow movement is gradually strengthened, some small pieces of silt in the sink are washed up, scattered particles suspended on the mud surface, at this time the water body is cloudy state, the corresponding water flow rate of this stage is between 25 to 50 cm/s.

With the further increase of the flow velocity, the shear stress of the sludge increases further, and the turbulence effect of the flow is gradually strengthened. Some small pieces of silt in the flume are washed up and suspended on the mud surface in a granular form. At this time, the water body is turbid, and the corresponding water velocity is between 25 ~ 50 cm / s.<br>