Question

Write short note on Momentum principle correction factor

Answer 1

We have assumed in the derivation of Bernoulli equation that the velocity at the end sections (1) and (2) is uniform. But in a practical situation this may not be the case and the velocity can very across the cross section. A remedy is to use a correction factor for the kinetic energy term in the equation. If $ \overline{V}$is the average velocity at an end section then we can write for energy.