v2f turbulent model
 

hi all
i want to simulate turbulent flow in a 2D channel (2*40cm) by v2f model.
i set it as follow:
-i try to use fine mesh near the wall, (y+<=1)
-B.C : velocity inlet, v=5 m/s , and define functions for v,k,epsilon and v2.(to be fully developed from beginning of channel)
outFlow for end of the channel
nosleep fo walls.
-second order upwind to solve equations.


but unfortunately i can't valid my results!!!!!!:(:(:(:( for example i can't find u+ vs y+ graph correctly!!! and also v'+ vs y+ and k+ vs y+ near the wall!!!!(1<y+<100) :confused:
i don't know what the problem is!!!! :confused::confused::confused:
is there any one help me to handle this problem.