The k-epsilon turbulence model was never finished since it really required SUPG stabilization to be relevant. Now, SUPG and PSPG are implemented in the navier-stokes module. So the k-epsilon model could be finished if someone wanted to work on it. It's very close to completion; the major piece remaining are the wall functions.
While Dr. Lindsay is not able to work on this directly, consult with @lindsayad to get appropriate initial direction.
From @lindsayad :
The k-epsilon turbulence model was never finished since it really required SUPG stabilization to be relevant. Now, SUPG and PSPG are implemented in the navier-stokes module. So the k-epsilon model could be finished if someone wanted to work on it. It's very close to completion; the major piece remaining are the wall functions.
While Dr. Lindsay is not able to work on this directly, consult with @lindsayad to get appropriate initial direction.