If a pipe diameter decreases by half, does flow speed...?

This forum made possible through the generous support of SDN members, donors, and sponsors. Thank you.
Assuming the flow rate (Q) is constant:

original formula Q= Area x Vel. ----> Q/Area = V

So area ---> pi(r^2)

So I would assume it would increase by 4?.....
 
increase by a FACTOR of 4. Not trying to be a douche but there's a difference there that could trap you if you're not careful

Well duh, who would think that it would just increase by an integer of 2 or 4...that doesn't make sense.
 
Last edited:
Unless it is an ideal fluid. Flow rate would be constant for an ideal fluid and would follow the continuity equation: cross sectional area decreases, velocity increases.
 
Top