Question: Let's consider the viscometer as shown in the picture below. The viscosity is measured by dropping a solid cylinder with a radius of kR and

Let's consider the viscometer as shown in the picture below.
The viscosity is measured by dropping a solid cylinder with a radius of kR and a length of L in a long cylindrical cylinder (radius R) with both ends blocked.
As the solid cylinder subsides downward at a speed of V0, the fluid rises and fills the empty space generated above.
(1) Find the velocity distribution of the fluid. (L in length and P in pressure drop.)
(2)The volume flow rate of the empty space generated as the solid cylinder moves downward and the volume flow rate of the fluid between r=kR and r=R are the same.
Use this to determine the pressure drop P .
Let's consider the viscometer as shown in the picture below. The
plz....

iR ! KR 20 L Vo r=KR r=R N N r V =(Ur, U9, U)

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