Transition to turbulence study on a 2D airfoil
 

Hey guys
I,m working on a 2D airfoil and studying on transition to turbulence phenomena on it. In my experimental study I've used Turbulator strip on my model and I've run my tests and now in my CFD I want to locate turbulator on my model in ICEM. I've found I can introduce two different block as laminar and turbulent Flow on my model (i.e: before the 10% of chord the flow is laminar and after that the flow should be turbulence) but I don't know how to do it and unfortunately there is no tutorial for this case. Would you help me to make it?
Any help will be greatly appreciated.