# Tutorial of open channel

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 November 8, 2012, 17:59 Tutorial of open channel #1 Member   Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 7 Guys, please does anyone have a tutorial of designing an open channel and determination of its characteristics using fluent? its an urgent

 November 9, 2012, 00:09 #2 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,358 Blog Entries: 6 Rep Power: 45

 November 9, 2012, 04:00 #3 Member   Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 7 thanks for the tutorial sir, i hope this will be very helpful to me. Again thank u sir

 November 14, 2012, 06:49 #4 Member   Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 7 I have an open channel with some inclination i.e. negative slope. I have done its modelling as well as meshing. In fluent, i have done following operations- (1) General- Pressure based solver and steady flow Model- volume of fluid, checked open channel flow and body implicit force (2) checked energy equation (3) selected k-epsilon model (4) Phases- primary phase- water secondary phase- air (5) Boundary conditions- for velocity inlet: in momentum, for mixture, i have given zero gauge pressure and zero velocity. Also i have given hydraulic intensity 10% and hydraulic diameter A/P. for pressure outlet: same as that for velocity inlet Symmetry walls: default conditions (6) Solution method- PISO and all default conditions Is there something else which i am missing because i am not getting the correct velocity profile although pressure profile which i am getting, is correct to be linear? Please help me. Its an urgent.

 November 19, 2012, 04:38 #5 Member   Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 7 anyone please reply............ I am confused

 November 23, 2012, 11:18 #6 Member   Rohit kumar Mittal Join Date: Sep 2012 Posts: 41 Rep Power: 7 What ever is the volume fraction of water, i am getting the same velocity profile against depth, how this can be possible?

 September 1, 2013, 07:02 #7 New Member   Andrey Yakovchuk Join Date: Nov 2012 Posts: 22 Rep Power: 7 Only the heavier phase should be selected as the secondary phase. Check the 26.3.2 page in user guide.

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