[Jongmin Choi]

I need to specify turbulent viscosity ratio() for using k-epsilon model.

I could know the dynamic viscosity from the information of the material except for eddy viscosity.

I found that it depends on the geometry and flow. Could you let me know how I can determined the Turbulent(eddy) viscosity for finding out turbulent viscosity ratio? Is there any equation for determining the turbulent(eddy) viscosity????