Module 7: Energy conservation
  Lecture 21: Minor loss, kinetic energy correction factor
 
 
(Fig. 21d)
We revert to “Vena–Contracta” later in the course.
Before we take–up the topic on flow measuring devices, which are related to the application of mechanical energy balance, we address kinetic energy correction factor:
Consider the flow of viscous fluid in a tube. The flow is under laminar conditions and the velocity profile is parabolic:
(Fig. 21e)