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John N. March 8, 2009 17:10

Free surface B.C. and I.C.

I would be glad if anyone could help me defining b.c. and i.c at a transient free surface air-water problem (flow in wavetank).

According to tutorial 7 I've understood how to define the volume fraction of air/water at the inlet and at the entire domain as I.C.

how can I define a velocity profile for the inlet (with CEL)?? is it possible to be funtion of time?

how can I define initial velocity field for entire domain?



neewbie March 9, 2009 04:47

Re: Free surface B.C. and I.C.
hey with MyVelocity*ctstep you can make it a function of time when MyVelocity is your expression for the profile.


John N. March 10, 2009 17:28

Re: Free surface B.C. and I.C.
can you please send me an example for the CEL function?

neewbie March 11, 2009 06:51

Re: Free surface B.C. and I.C.

maybe this is better for you.

once you have your "profile"... choose your function by which the profile should vary and simply replace the "t" in your time-function with "ctstep" add it as CEL. Et voilá.


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