CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   FLUENT (http://www.cfd-online.com/Forums/fluent/)
-   -   Tutorial of open channel (http://www.cfd-online.com/Forums/fluent/109089-tutorial-open-channel.html)

 rkmittal1108@gmail.com November 8, 2012 17:59

Tutorial of open channel

Guys,
please does anyone have a tutorial of designing an open channel and determination of its characteristics using fluent?
its an urgent

 Far November 9, 2012 00:09

 rkmittal1108@gmail.com November 9, 2012 04:00

thanks for the tutorial sir,
i hope this will be very helpful to me.
Again thank u sir

 rkmittal1108@gmail.com November 14, 2012 06:49

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.

 rkmittal1108@gmail.com November 19, 2012 04:38

anyone please reply............
I am confused

 rkmittal1108@gmail.com November 23, 2012 11:18

What ever is the volume fraction of water, i am getting the same velocity profile against depth, how this can be possible?

 einandr September 1, 2013 07:02

• Only the heavier phase should be selected as the secondary phase.
Check the 26.3.2 page in user guide.

 All times are GMT -4. The time now is 04:48.