If the diameter of the rotating blades in 30mm, agitator speed is 20 RPM and the fluid in the vessel has density 990kg/m3 and viscosity 2.5×10-2 kg/ms. What is the value of Rotary Reynolds Number?

If the diameter of the rotating blades in 30mm, agitator speed is 20 R

1.	If the diameter of the rotating blades in 30mm, agitator speed is 20 RPM and the fluid in the vessel has density 990kg/m3 and viscosity 2.5×10-2 kg/ms. What is the value of Rotary Reynolds Number?
A.	11.88
B.	12.88
C.	12.33
D.	11.55
Answer» B.