Poiseuille Flow

Practice Questions

AP Physics 2 › Poiseuille Flow

Questions

5

1

Suppose two pipes made out of an identical material have the same length and the same liquid flowing through them. If pipe A has a cross-sectional diameter that is twice as great as pipe B, how does the flow rate in pipe A differ from the flow rate in pipe B?

2

Dynamic viscosity of water: $8.90*10^{-4}Pa*s$

Find the pressure change due to the Hagen-Poiseuille law in a long pipe of radius , where the water is flowing at $3\frac{m}{s}$ .

3

The mass flow rate through a cylindrical pipe of cross sectional area is $\dot{m} = 1,500\frac{kg}{s}$ . What is the pressure drop over a distance ?

Assume $\mu_w=1.002x10^{-3}Pa\cdot s$

4

Water enters a circular tube at a velocity of $20\frac{m}{s}$ . If the pressure drops by after a distance of , what is the diameter of the tube?

$\mu_w = 1.002x10^{-3}Pa\cdot s$

5

Dynamic viscosity of water: $8.90*10^{-4}Pa*s$

Find the pressure change due to the Hagen-Poiseuille law in a long pipe of radius , where the water is flowing at $9\frac{m}{s}$ .

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