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The effect of turbulence boundary condition is examinedhas been examined by varying the inlet condition. The following three plots of energy dissipation illustrate the result.
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Figure 1: Turbulent intensity 10% Turbulent length scale 0.004 (BL thickness * 0.4)
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Figure 2: Turbulent intensity 1% Turbulent length scale 0.04
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Figure 3: Turbulent Intensity 20% Turbulent length scale 0.0004
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Comparing 0004 Comparing figure 1, 2 and 3, big large changes of turbulence boundary conditions did does not affect the solution much. We just need to do rough calculations on the parameters to input for accurate result. Final boundary condition is the Turbulent intensity of 10% and turbulent length scale of 0.004 .004, which is approximately .4*boundary layer thickness.