A constriction in a pipe reduces its diameter from 4.6 cm to 2.7 cm . Where the pipe is wider, the fluid veloci?

Question

A constriction in a pipe reduces its diameter
from 4.6 cm to 2.7 cm . Where the pipe is
wider, the fluid velocity is 8 m/s.
Find the fluid velocity where the pipe is
narrow.
Answer in units of m/s

Answer 1

pi * (4.6 / 2)^2 * 8 = pi * (2.7 / 2)^2 * v



Solve for v.

Answer 2

you need the ratio of the cross sectional areas.

A=pi/4*d^2

Done!

Answer 3

Look up the continuity equation, understand its meaning and apply it to solve this problem.