The basic Differences between pipe flow and open channel Flow  are given below

Pipe Flow :


Open Channel Flow :

1Flow occurs due to gravity .Flow occurs due to different in pressure .
2The maximum velocity occurs at a little distance below the water surface.The maximum velocity occur at the center of the pipe .
3.Cross section of open channel can be trapezoidal, triangular,rectangular ,circular etc.Cross section of pipe generally round .
4.HGL(Hydralic Gradient Line ) coincide with water surface line.HGL(Hydralic Gradient Line ) do not coincide top surface of the water

I just add four basic difference between pipe flow and open channel flow here . If you want to add some please ,post your comment below .

Thanks !

stay with HOWTOCIVIL


Hi there! My name is Ripon Chandra Malo. I am a Civil(Geotechnical) Engineer. I always love to learn new things and want to share what I learned. Also , I am a part-time blogger and freelancer. I will try to share my knowledge in the different fields of civil engineering. If you have any questions to ask then please contact with me.


  1. Umair Ahmed Jan Reply

    how will be the diagrams of velocity profile for both open and close channels?

  2. vijay kumar chaudhary Reply

    which flow i will be say when pipe is not completely fill the cross section of pipe

    • Thanks for your comment. Flowing through pipe is always pipe flow .

Write A Comment