We have gone through many forum projects and found that they have their own k and epsilon values. Please tell or illustrate the formula used to calculate for external flow. Your help will be appreciated.
This here might help you: Defining Turbulent Boundary Conditions - let me know if you have any additional questions.
We gone through it. I have a clarification. How to decide turbulence values for flow over tire.?
I would use the velocity of the inlet that you have set as the boundary condition in your simulation.