Investigation of Turbulence Boundary Condition

The effect of turbulence boundary condition has been examined by varying the inlet condition. The following three plots of energy dissipation illustrate the result. 

Figure 1: Turbulent intensity 10% Turbulent length scale 0.004 (BL thickness * 0.4) 

Figure 2: Turbulent intensity 1% Turbulent length scale 0.04

Figure 3: Turbulent Intensity 20% Turbulent length scale 0.0004 

Comparing figure 1, 2 and 3, large changes of turbulence boundary conditions does not affect the solution. Final boundary condition is the Turbulent intensity of 10% and turbulent length scale of 0.004, which is approximately .4*boundary layer thickness.