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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.
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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 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.
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