Flownet

                                                  

                    FLOWNET

Definition:

• If we will draw equipotential lines and stream lines for a fluid flow, we will see that both lines will intersect each other at right angle or orthogonally and will develop one grid or net and that grid will be termed as flow net.

                 

                        

• Flow net is a very important tool to analyse the two dimensional irrotational flow problems.

Example:

                        

Limitations:

•  Flownet analysis cannot be applied in a region close to the boundary where effects of viscosity are predominant.
• Flownet analysis cannot be applied to a sharply diverging flow.
• It can give very little information concerning the flow conditions at the rear because of separation and eddies.