Introduction

• A complete analytical solution for the equation of motion in the case of a laminar flow is available, even the advanced theories in the analysis of turbulent flow depend at some point on experimentally derived information. Flow through pipes is usually turbulent in practice.
  
  
• One of the most important items of information that an hydraulic engineer needs is the power required to force fluid at a certain steady rate through a pipe or pipe network system. This information is furnished in practice through some routine solution of pipe flow problems with the help of available empirical and theoretical information.
  
  
• This lecture deals with the typical approaches to the solution of pipe flow problems in practice.