If the diameter increases the fluid speed slows down. That means the pressure must go up, not down.
Area = A = pi D^2/4
Q = flow volume per second is constant = A v
if A goes up, v goes down
p + (1/2) rho v^2 is constant so if v goes down, p goes up.
For an ideal fluid flowing through a horizontal pipe, Bernoulli's principle and the continuity equation state that the pressure within the pipe does which of the following?
Pressure descreased pipe diameter increase?
1 answer