From trials to find out the various variables divided into 3 nozzles:Nozzle nozzle rotation 1 360 degrees or 2 π 2. rotate 540 degrees or 3 π And 3 a 630° or 3/2 π.
The experimental parameters. It is divided into three types of nozzles nozzles nozzles that rotate 360 degrees or 2π 1 Type 2 swivel 540 degrees or 3π and a third rotation of 630 degrees or 3/2 π.
From the experiment of various parameters, divided into 3 nozzle.Nozzle at the 1 rotating nozzle 360 degrees or 2 π.A 2 rotating 540 degrees or 3 π.And the 3 rotating 630 degrees or 3 / 2 π.