kepsilon and pisoFoam
hi..
i have a case where i have sent a 2m/s velocity and observe the trail around a cube. I have successfully done it in Fluent. i had as boundary condition the inlet velocity, the outflow and the symmetry for my domain then the wall for the cube. i was in turbulent regime and using Kepsilon model with Simple algorithm. Now i wish to apply it to Openfoam. so i chose pisoFoam and Ras model I have changed my U and P Boundary cond accordingly.. My problem is i do not know how to modify the Kepsilon and fv solution and fv scheme accordingly..:( Any idea from the experienced user on how to modify the above mentioned specifications?? Regards zaynah 
As a starting point, have a look at one of the tutorial cases.
You should use wall functions for k (kqRWallFunction), epsilon (epsilonWallFunction) and nut (nutUWallFunction) at the walls. At the inlet you can use the following two boundary conditions to estimate k and epsilon based on the turbulent intensity and the length scale: turbulentMixingLengthDissipationRateInlet for epsilon turbulentIntensityKineticEnergyInlet for k 
hi thanks for your reply.
here is my modified files but i found this error.. Quote:
Quote:

Hi zaynah,you have a missing curly bracket at the defintion of p

hi Gregor..
in fact you are right and also i had done a mistake on the K file in Boundary condition.. it now work beautifully.. thanks 
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