The water enters the sprinkler nozzles with a flow rate of 50 liters / hour in the vertical axis direction and leaves the sprinkler nozzles as 25mm diameter jets and making θ angle with the tangential...

The water enters the sprinkler nozzles with a flow rate of 50 liters / hour in the vertical axis direction and leaves the sprinkler nozzles as 25mm diameter jets and making θ angle with the tangential direction as shown in the figure. The length of the sprinkler arms is 0.45 m. Without considering friction effects; For θ = 75 °, set the rotational speed in rpm.